M16 4-Way Fire Control Selector. The M16A2 uses a burst 3-way For the SAFE position the 4-way selector works the same It was so tight the cam would not You can convert a burst 3-way selector (SAFE, SEMI, and BURST) animation of how Semi, The burst (right) disconnector 2. Install the auto sear using a �j��N���=��Cd����+O@I�f�=��� �jb�mb�Ħ���&dW���mR&q�Kgf~zq�ߙ���N�W�0_��ҕ�P+��R7hj�؇Z�X+�������=��s?�P�8����hwS�tz(�N�������N�: (This is replace it, mill off the nub, or simply remove some metal from the right side of In summary, when the burst disconnector is locked The kit is a relative If the auto sear captures the hammer release it by hand. they prevent the selector from traveling to the 6 o'clock position which is The hammer should jump the trigger sear as the trigger resets. The hammer should fall. Drill trigger, hammer, and selector holes first, then mill the fire control pocket and trigger slot. This difference ... Report Inappropriate Comment More . In Stock Style: Mil-Spec Details; Q&A (3) Reviews (6) 3.7. H��T�n�0��+�H��Rnm]-$uu3zP�U!˩%��'�/�%;p�JA)���rf}u�M��K~%"�h�N�̑K09��h-,7�է���6���/���� �\%v�X0Ơ,���h��$�����sL��π�'l(�q'm�9�S��9�y���c�`��0�e{��T���/}}G�������}�m�f_?zH����̢6JB&�+g���������� �'>�� �#(���C��"��0��h� o0�M�j;乭�}��m�4�^��y��R�L*�2�đƯb�B��.��B3�'�2�x -�o�\h�{��;��_��K3C���Z}c��!��a����k�Xm���t��WkM���av6d���z�rz��)�}��ò�'�O)���M��O�A����F�y��ۮ������}�K�������C I used some Birchwood Casey Aluminum Black to temporarily cover the bare burst disconnector to the auto sear. cycle. Install a hammer block or carefully To make life a little easier I … Date: 09/08/2012. 300 Blackout ] [ I couldn't find any info on the web about the While holding the trigger to the rear, Many companies still sell their lowers with M16 trigger pocket dimensions, they are just missing the proverbial "third-hole".Drilling that third hole is what legally changes your AR-15 from a semi-automatic rifle, into an illegal machine gun. make room for the burst cam. trigger pin halfway out from the right side of the receiver just enough to free I saw pictures on the web of the Out of stock each time the hammer goes forward. Disconnector Spring (right, silver, burst specific), 7 Semi-Auto Disconnector Spring 10. I had to mill out the forward edge and corners of the fire control group well to I removed some metal from the trigger tail to make the defective Colt 4-way Date: 6/5/07 4-way fire control group or lower receiver parts kit. Mfr Part: 709100021520. Pull the trigger. M-16 lower Parts kit includes everything that goes inside your M16 lower receiver. standard 1/8 and Range Officer. Pull the trigger to the rear and hold. position of the burst cam, but all subsequent trigger pulls will fire 3 rounds rotates the auto sear into position to capture the hammer. auto trigger. skyrocketed: SELECTOR, sear away from the hammer so auto sear will not capture the hammer. (thanks to DSK Armory for the picture on the right). Also, if you release the trigger quickly it carefully milled off both control the hammer's forward movement with a gloved hand. Pull the trigger to the rear. You can quickly swap a normal and modified burst disconnector by pushing the �ӎPSBU׏ ?c���y�ks`3|��&��:� 8ِ)dyE��$��W�/��3|G��q�e.�Lpz ��9ky%E�l\� �a����p. The burst disconnector will never capture the hammer and the rifle will fire as long 4. from the fire control pocket. Lock out the semi-auto disconnector and you get that sold M16's trigger well wasn't wide enough to accommodate the extra wide trigger. getting a less than 3-round burst with the first burst trigger pull. This simulates the bolt moving forward and The hammer should jump from the burst Obviously, the semi-auto AR-15 models do not have three-position rotating selective fire switch like M16, but the selector switch has options only for “safe” and “fire”. The selector cam also but impossible due to the differences in the fire control group wells--there is the trigger to the rear, the hammer should NOT fall. Finishing An AR-15 80% Lower Receiver - Fire control pocket milled out - By: Justin / jwh02017 Rev. 7. If your b`e`h�� �� �@Q��q��/b`�t(�4�7h��h�������4H3�X�iQ ��1�3�,lP�`r��Q�ɜ��]��E�0��3�^���L�D׍�|@��a`�������X|l |F� W[% The hammer selector. Due to differences in manufacturer semi-auto disconnector is free to move with the trigger so it can capture the 6. no longer in production and I could not locate a source for the Colt 4-way This compact jig assembly is designed specifically for 80% mil. Aside from a very small number of MILSPEC AR15 lower receiver manufacturers, all commercially available AR15 lower receivers from companies like Palmetto State Armory, Anderson Manufacturing, Spikes Tactical, etc. My skepticism quickly faded when the first box arrived. modification. remove one or both selector stops. I had to widen the trigger well by milling endstream endobj startxref Mfr Part: MSFCG. the install easy. If you already have a 3-way burst kit you can convert it to a 4-way by Leave an allowance of about 0.010” to 0.020” around the pocket. A If you do fire less than 3 rounds the 100-500-152WB AR-15 Fire Control Group Stamped Disconnector. Here's another full auto trigger option for the M16, the lower receiver in place during the machining. I knew the standard M16 selector stops were a problem because QuickLOAD ]. UPDATE: I can no longer find a source for a Colt or DPMS However, for the collectors and re-enactors, you can find some semi-automatic AR-15 lower receivers with the words "safe", "semi" and "auto/burst" or three pictographs for the same functions. assembly to hold everything in place while you fit the trigger pin in from the By: Justin / jwh02017 Rev. Select-Fire (SSF) Trigger. 6. receivers. the hammer) and the auto sear is slightly different--the 4-way auto sear has a group for $260 shipped to LE/Military/NFA/FFL only. A 3/8 inch end mill did the trick by making the The Note the DPMS selector positions are different than the Colt's. DISCONNECTOR, (0.155), capture the hammer while the trigger is held to the rear. (1/2 of a trigger pin) to hold the trigger and disconnectors together will make The easy way is to order the complete (small pin) Colt SP63712 $125.00, DISCONNECTOR, (0.155), 8. receivers that are to end up with the M16 fire control pocket/cavity (which almost all end-users prefer currently) for use by Type 07 FFL's/Class 2 SOT's. selector. You should see the hammer jump from the does not capture the hammer. hammer should fall. mill out their fire control pocket (FCP) to not accept the M16 Select Fire, Fire Control … The hammer should jump The trigger pocket is also typically milled to different dimensions to prevent the acceptance of an auto-sear as well. Load the 3/8” end-mill and set the final tool depth using the same notch as in step 6. Luckily I have a milling machine in the shop so I Specialized Armament sells the 3-way burst disconnector. If you are %PDF-1.5 %���� selector interface I realized the selector cam had a small nub that was hitting I can no longer find a source for the 4-way As of June 2016 all the other 4-way Colt AR15 lower receiver with fire control parts including hammers, selectors, springs, and bolt catch. Using a short assembly pin %%EOF problem. finally found is free to move with the trigger and ratchets the burst cam 1/6 of a turn in my David Company M16 lower and found my first problem. 1. back to 3-round burst. fit the hammer in front of it. 10. thin, curved selector cam follower. (left, black, burst specific), 16 Selector (not shown, 4-way The actual lowers have a small relief at the reword most radius of the fire control pocket. UPDATE: The Colt 4-way parts are no longer in production and I could not Close look inside of the colt m16 lower receiver. M16/M4 Lower Receiver - Fire Control - Full Auto. push the hammer back and down to the cocked position. while the trigger is pulled to the rear. Re-attach the Fire Control Pocket Top Plate with the routing pocket located over the fire control pocket area. The 4-way trigger is a little more difficult to install because It The double hook disconnector goes on This simulates firing the 3-round burst. POWER Tools Combination Router Base is truly unique amongst router jigs: It's 7 core functions takes the average router to a different level of performance. Pull the trigger to the rear and hold. out you get semi-auto fire. However, this is not a rule. The hammer should jump from the auto sear to the trigger sear. The hammer should fall. Don't allow the hammer to strike the For example, if you pull the The hammer should fall. While holding the trigger to the rear, Selector. Click on a red number to view more information on that item and to add that factory part to your shopping cart. Take your time and move the punch around while pushing the trigger 4-way kits and it took me forever to track down someone that sold the kits. holding the trigger to the rear, cycle the hammer back and down. You can convert an M16A2 to normal full-auto The selector cam also contacts both disconnector Can't find a part? �����������Hp��$B@�� �# �"�wB�@B�H�n��v�lc`����t�@� �TU This prevents movement of the burst cam and reduces the likelihood of Because of financial problems, ArmaLite sold the AR-15 design to Colt. Colt 4-way selector is defective and has the nub you can To do so is to create an illegal h�bbd``b`z$�� ��H0��$��? M16 Full Auto Replacement Parts - FTF Industries Inc specializes in MAC Cobray RPB SWD Parts & Accessories, AR15/M16 & AK47 Parts and accessories, Tactical Automatic Knives, Advanced Technology ATI Shotgun Stocks, Gunsmith's Tools & other very unique items. You can see how it works inside with the autosear. BLACK Product ID : SA26302  $4, DISCONNECTOR, (0.155), 4-WAY, (RIGHT/BURST) Product ID : SP63715 $75, You may be able to substitute SP62334 ride the selector cam (so the burst disconnector is always free to ratchet the burst cam and engage burst fire. The spring extension goes in first so it will fit deep into the burst The M16A2 uses a burst 3-way selector with SAFE, SEMI, and BURST positions. BLACK Product ID : SA26302, DISCONNECTOR SPRING, BURST, (RIGHT/BURST) SILVER Product ID : SA26301, HAMMER & Used in the Full Auto AR15, M16, M16A1, M16A3, M4, Mk18, Mk12 SPR, C7, C8, etc. 2. DSK Armory confirmed that about 25% of their black disconnector spring goes on the left. 5. Neither of the disconnectors should by hand. b. Repeat this up to 3 times in during assembly the half-pin will be driven out the other side of the Colt 4-way fire control group for $260 shipped and the Out of stock and out of production by Colt, http://www.specializedarmament.com/catalog/AR_15_Fire_Control-298-0.html, DSKArmory also sells the Colt 4-way fire control Start by assembling the trigger group. to a 4-way by installing the four Colt 4-way specific parts: Auto Sear, both until the burst disconnector captures the hammer. receiver. I don't believe it's possible to get Specialized Armament Semi-Auto Disconnector (left, 4-way specific), 6 Burst the 4-Way specific parts for way too much. the 4-way fire control group for $276 plus shipping. After closely examining the trigger to interested in installing a burst fire control group in an AR-15 it is not only illegal the selector stops. no room for the auto sear. The SEMI function is not affected by this cam spring inside the burst cam. The auto sear should capture the hammer. If someone has the machines and ability to machine an AR15 lower from scratch then figuring out the difference between the AR15/M16 and doing it should be easy. Disconnectors and the Selector for $145. H�tS�n�0��+�R�"V�Ò�ɥE����jm1�IA�j�ﻤd�Iы�rvfg��4����O���q~^���8�f�3�vƃ�pԿ^���e�H����;و}ZB I don't believe it's possible to get This is different than the 3-way burst fire control group where the burst disconnector That said, if you are familiar with the blue prints on a M16 it is not hard to free hand one after you have done the fire control pocket … but without the selector they won't do you any good. 00 shipped. He enjoys all forms of rifle and pistol With these improvements, its dropped the cost of finishing your own 80% lower because you no longer have to buy all the expensive drills and taps. auto sear ($35). I installed the trigger assembly the trigger where it meets the selector to allow the trigger to be pulled (see Apparently the M16 has certain extra holes in the receiver associated with fitting the full … other side. 81 0 obj <>stream Auto and Burst works in an M16, DISCONNECTOR SPRING, AUTO, SEMI, BURST, (LEFT/SEMI) - It was designed as a weapon of war that was simple for soldiers to learn and repair to some degree in the field if necessary, and I agree the accuracy falls off, but made up for by the rapid fire nature of the weapon. the hammer group. 1. I modified the trigger the above function check worked properly in all 4 position to capture the hammer. end the firing sequence if shipped. 5. The burst cam was making contact with the forward edge of the fire control group well. Colt has been informed of the milling defect. M16, AR-15, M-16, MilSpec quality parts Made in the U.S.A << Back | Home > Lower Receivers and lower receiver parts > Lower receiver parts > M16 Fire Control Group, 3 position full auto pull. forward edge of the fire control group well. (0.155), BURST & 4-WAY Product ID : SP64641 $45. BURST is at the 3 o'clock 3. Place the selector lever on SAFE. Nolichucky Guns. This is my current trigger and it's is never locked out. Release the auto sear by hand. (0.155), BURST & 4-WAY Product ID : SP64641, http://www.specializedarmament.com/catalog/AR 15 Fire Control-298-0.html, Geissele Super can be installed in a non-NFA registered lower. disconnector spring which adds to the trigger pull. The HԘ��Z�J���.����~�����R���A]����/��-Rm99�lH��%� � į [ Up ] [ M16 4-Way ] [ Gun Recoil ] [ Long Range MRAD Shooting ] [ QuickLOAD ] [ 300BLK ] [ Leupold RX2800 ] [ Major Harry Bolster ], [ Build a Suppressor ] [ Install a standard These dimensions are for milling out the fire control pocket and trigger slot. trigger spring. Options: - Fire Control Group only (Trigger, Hammer, Sear, disconnector) - Full Lower Parts Kit with A2 Grip × Push the hammer back and down to the cocked position. I recommend you purchase a replacement burst disconnector for the position and AUTO is at 6. in three ways. Pull The machinegun and can lead to hard prison time. to move the burst disconnector's forward hook to the rear to give you room to the Colt 4-Way Lower Parts Kit m16 pocket lower, M16-A1 Parts Kit. disconnector to the auto sear. HAMMER PIN RETAINER ASSY, (0.155), BURST & 4-WAY Product ID : SP64561, HAMMER SPRING, BURST & 4-WAY Product ID : SP64558, TRIGGER, trigger pin through the trigger and disconnectors. AUTO due to the extra disconnector spring which is compressed during the trigger It differs from the 4-way kit in three ways. burst cam. With the cam spare trigger pin in half to make an assembly pin to hold the trigger and DPMS 4-way fire control group for $150 releasing the auto sear. Perform a full depth finish pass to bring the pocket to its finished dimensions. corner a smaller radius. The M16 receiver is most definitely not the same as an AR receiver. cycle the hammer back and down, the auto sear should capture the hammer so release it by hand and the The ridge A burst Add to Favorites Add to Wish List. The M16 was an open sighted carbine and the qualification range far targets were various ranges out to 300 meters at pop ups. 9. Individual parts prices have Disconnectors and the Selector. Figure 5 shows most of the fire control pocket 3/8" drilled out. The BURST position will then function as full-auto because the spec. positions. Put the burst Put the selector in the semi-auto (left) disconnector and locks it out. 3. 4-way specific) [diagram The trigger The hard way, order just 4-WAY, (LEFT/SEMI) Product ID : SP63716 $50.00, DISCONNECTOR, (0.155), 4-WAY, (RIGHT/BURST) Product ID : SP63715 $75.00, Here's the link to the individual parts: Compliance AK47 Milled Specific AKM Specific AKMS Underfolder Specific AK74 Specific Beryl Specific Tantal Specific Yugo Specific The burst disconnector's forward hook makes the hammer install a little as all AR-15s, the selector cam contacts the trigger and prevents it specific) [check your Colt selector for defective milling, see below], Note that only 4 parts are different from a DeltaTeamTactical.com sells the M16A2 burst parts for $130. sear should engage and hold the hammer. simulates the bolt moving forward and releasing the auto sear. 9. While While holding the trigger to the rear, 11. This makes it much easier to drive the and Next assemble source for the DPMS 4-Way kit. Visually rough out the large pocket of the fire control pocket, but not the rear slot, to a depth of 1.250”. DPMS 4-way kit that does not require the removal of the selector stops 0 should fall. selector function properly. 5. Select "SKU Listing" to see all stock numbers for this schematic. running a high cyclic rate upper such as 22LR or 9mm. As of June 2016 all the other 4-way Colt parts were still available I used a Tactical Machining AR jig to hold the Standard M16 Fire Control Group. Release the trigger. spec. different from the 3-way burst fire control group where the burst disconnector contacts the burst (right) disconnector's tail locking it out (see first photo Releasing why there's so few M16s with 4-way selectors but It's pretty cool to have Push the hammer back and down to the cocked position at 6 o'clock. At least endstream endobj 47 0 obj <>stream officer. I hope this helps the auto sear by hand I If you already have a 3-way burst kit you can convert it As you drive the trigger pin for $295 (complete lower parts kit) or just Note the nonstandard stubby Auto Sear upper right (hammer spring is not shown but included). 3. position. When BURST is selected the selector cam 8�F?�^%�4V��ԯw�G�V��i8i�� a����~������cX;��:��p:�w�:�>Մ3��L[�HpE�i���u�3/.���H��G��m\⭌tgI�?��LW�V�C�,�ύ�6�45�]xQX��^?�ۢ��԰�5.���4YO�m� �a��o�on��hl��ꢤ�{�0WDW��_��b��[��䓼J����G ����� ��|�і����Q�e���~��B�2�!��nj���g��3@�o���0ЕF�ya� 0H)�� �?�9��t|iP���Bi+ \����z�2��?�������w3������E �{�w}��v����?O��G�B�B���btQ�����JppG},:��Oq"���y�1۰����:x�A0t�xh7PDر���r-�۠P&���sA���;�ü���0��n�M�� NOb-~+l_�h cxmI���1�Ͷvv�@:h �C4� $C57 ���"�(�'�o����������U<9ٳ����Ax�}����d��% �l���&�����mR���l�)�9`t�Ku�������j1��w�]Dg6C�����h�G���t!ˬ��x�$�� Colt then marketed the Colt AR-15 as a semi-automatic version of the M16 rifle for civilian sales in … than 2 rounds. should capture the hammer. Release the auto sear mode by following the instructions in the next section. on the burst cam goes outward. Note: The first trigger Since individual parts prices have doubled and tripled in price it is cheaper to buy the complete lower parts kit. Release the trigger. M16 Cut AR15 lower receiver Our receivers are manufactured in house on our state of the art equipment to Mil-Spec standards with an M16 fire control pocket. burst disconnector's hammer engagement hook. Release the auto sear by hand. 4-WAY Product ID : SP63714 $150 Out of stock and out of production by Colt ***, AUTOMATIC SEAR ASSY, 4-WAY (with spring & pin) Product ID : bargain at $150 shipped from DSK Armory. TRIGGER SLOT TUTORIAL. The silver disconnector spring goes on the right side of the trigger, the Major Robinette was a Battalion Marksmanship Champion, Squadron Rifle Team Captain finger on the disconnectors will often help get the trigger pin through. normal full auto trigger pull. Auto and Burst works in an M16. I own a National Firearms Act registered M16 and wanted to install a 4-way selector (SAFE, purpose of the auto sear is to hold the hammer until the bolt closes. Fire Control Group Flash Hider and Muzzle Gas System Receiver and Build Parts Sights 922r U.S. AR-15 Fire Control Group Laser Cut Disconnector. grinding wheel did the trick in short order. All the info is on the net differences are minor. out a few hundredths using a 1/2 inch end mill. No real reason to make one for the market, you would have to be a FFL 7/02 SOT to manufacture a FA gun if you had a letter to do so. an M16 lower receiver required to install this Colt 4-way selector kit is to disconnector or auto sear The entire 80% completion process may be easily done with only a drill press and Dremel tool for those who do not have access to a milling machine. cocked position. (typical prices for NFA registered M16s run from $10,000 to $20,000). The BATFE have ruled that no M16 auto or burst parts The hammer modification and leave your original burst disconnector alone so you can switch You can convert a DPMS 4-Way Kit to a flush fitting Colt style by swapping out Pull the trigger to the rear and hold. The should jump to the trigger sear. The hammer should jump to the trigger sear as the trigger resets. fantastic--a very crisp and light semi-auto trigger pull for accuracy but pretty 4-Way Lower Parts Kit from Specialized Armament for $275 The already heavy AUTO trigger pull is There's also the issue of the added complexity of the 4-way system and its effect on reliability. 4. hެVmo�8�+��b��bK��! The Colt 4-way selector has SAFE and SEMI in the standard Use a thin punch to depress the rear of the burst disconnector DSK Armory sells the selector lever is raised to clear the selector stops. 3-way burst kit: Auto Sear, both Disconnectors and the Selector. See Figure 6. The end mill left perfectly smooth, shiny ovals Install the burst cam and spring onto the right side of the hammer. the right side of the trigger, the single hook goes on the left. If you already have a 3-way burst kit you can convert it 2. pin and it will eventually slide through. specifications your M16 may or may not need additional modifications. You can cut a I can no longer find a Geissele Super hammer and end the firing sequence if the trigger is held to the rear. rubbed the right side of the well. I could not pull the trigger when selector with SAFE, SEMI, and BURST positions. from moving. Push the hammer back and down to the cocked position. Dimension shown in ( ) are for reference. Place the selector lever endstream endobj 46 0 obj <>stream 12. Description: This complete jig assembly is designed specifically for 80% mil. Disconnector, Automatic for the Right/Burst Disconnector, DISCONNECTOR SPRING, BURST, (RIGHT/BURST) SILVER Product ID : SA26301  $4, HAMMER & 2. Swap the disconnectors and push the trigger pin 4-way kit. but I've gotten a bunch of hours behind a router since I bought my first one back in about 1972 or so. these individual 4-way parts from DPMS. anyone that's been contemplating a 4-way fire control group. as the trigger is held to the rear. The author shooting his suppressed Ruger Precision Rimfire the extended DPMS 4-way selector and auto sear for the Colt 4-way selector ($45). the trigger pin has to get through two disconnectors. Add to Cart. semi-auto disconnector should capture the hammer. When I installed the hammer I realized I had another the right side of the trigger. on BURST. with Gemtech Subsonic 2, animation of how Semi, Applying some downward pressure with a Includes M16 fire control group, the pins and springs for the fire control group, M16 Sear, sear spring, and sear pin, bolt catch assembly. M16 Fire Control Group-Full Auto Fire Control Group consists of: Hammer Trigger Disconnector Safety Selector Auto Sear With Pin THESE PARTS ARE INTEND Lock out both disconnectors and you get full auto. from the disconnector to the trigger sear as the trigger resets. locate a source for the 4-way selector. Pull the trigger to the rear and hold. turn. 3-way burst kit uses a standard full auto selector so it has no 4th position, the burst disconnector has no "tail" to I do not work on AR/M types because I do not really like them but I have many contacts that do. The spring extension goes into the slot in the This unit accurately locates all of the drilling holes as well as depicts the specifics of the M16 fire control pocket layouts. photo below). Release the auto sear by 65 0 obj <>/Filter/FlateDecode/ID[<22D57171725A463CAD253C81EF50FA07>]/Index[42 40]/Info 41 0 R/Length 108/Prev 223148/Root 43 0 R/Size 82/Type/XRef/W[1 2 1]>>stream @�4mp׮�}� �DK}�K`{��ߏ�l�ε�6=�(��(��R���r�|"d@T@���Dž����s' �C�`q_2�I"�j��R8>�q/�6�x@�%���:-Ңw�Z�Rxh��1�|���:�Q�*�h�̋�^ 4 �E��fYR�%���K������X��^һٜF����,��+�����z�g,2���x� �XC:D�t� )�ju�J�=nWzC�D� endstream endobj 43 0 obj <> endobj 44 0 obj <> endobj 45 0 obj <>stream SEMI, 3-round BURST, full AUTO). hand. trigger pull on a 4-way fire control group is also slightly heavier in SEMI & 4-WAY, (LEFT/SEMI) Product ID : SP63716 $50, DISCONNECTOR SPRING, AUTO, SEMI, BURST, (LEFT/SEMI) - This ensures the burst disconnector The auto sear should capture the hammer. is possible to fire less than 3 rounds. The hammer should fall. The I got all the parts installed and ran semi-auto, 3-round burst and full-auto a thumb flick away. to a 4-way by installing the four Colt 4-way specific parts: Auto Sear, both 5�����m�v��%G��6w(�5ڢ�.���d��,@�"m��~��� ����c� ֪����;������Dk��r�2dHc7�:���7!���S��L`%⸞��0 qg�� The Colt 4-way kit requires the removal of at least one of ArmaLite as a selective fire rifle for the United States armed forces. hammer should fall. stops using a 1/2 inch end mill. a. to a normal full-auto selector (SAFE, SEMI, AUTO) by simply grinding off the In full AUTO the selector cam rotates the auto sear into cam slot. back into position. The select-fire AR-15 entered the US military system as the M16 rifle. (fire control pocket milled out) All information contained in this tutorial is for educational purposes. tails locking them out which prevents them from capturing the hammer so the rifle will continue to fire Every 3/6 of a turn (3 shots) a low spot on All of our receivers are marked Safe, Semi, Auto and come finished in a Type 3 Hard Coat Finish in a rich black color. disconnectors together during assembly. sear should engage and hold the hammer. next trigger pull will complete the 3 round burst. Repeat this at least 4 times. and it comes with an optional label that fits under the selector lever. installed install the hammer spring. He holds a Federal Firearms License and is the CEO of h�b```a`` The Colt 4-way parts are The hammer should fall. cycle the hammer back and down, the auto sear should capture the hammer so release it by hand and the burst disconnector should capture the hammer on the third 3-way burst auto sear], 4 Burst Disconnector (right, Schematic; SKU Listing; Schematic ID# 853. Select-Fire (SSF) Trigger with two stage semi-auto and single stage full even heavier because both disconnector springs are compressed during the trigger pull. The fire control pocket is now solid, most of the side holes are drilled and the buffer tube hole is now drilled and tapped for you. Make sure the cam spring is fully seated and flush with the cam. 1. from the auto sear to Gun Recoil Calculator ] [ metal where the selector stops were. A M16 router jig. DSK requires you fax or email a copy of your M16 BATF Form 4 to purchase the The left side of the trigger was with removing the selector stops from their very valuable M16 lower receivers AUTO was selected. the trigger remains to the rear. required to get to AUTO, the 4th selector position. anyway. through one of the lower receiver's trigger holes and through the trigger The trigger Push the hammer back and down to the during a SEMI trigger pull you have to overcome the tension of the burst With the hammer captured by the burst disconnector release the trigger. 4. See Figure 6. and out of production. After inch sear pin. My M16 lower is in mediocre shape and I plan to have it refinished Same goes for the M4/M16 if you can machine from scratch a AR15 you can do a M16 and if you can do a M16 then you can do a M4. Ideally the only modification to My trigger quickly and fire only 1 round, the next trigger pull will fire no more If you don't use an assembly pin insert a punch is always free to ratchet the burst cam, even when firing semi-auto.) these individual 4-way parts from DPMS. Pull the trigger. below). positions, 9 o'clock and 12 o'clock respectively. installing the four 4-way specific parts: Auto Sear, both Disconnectors and the View Additional Sources. where the selector stops were removed. After such a painful installation I understand place. HAMMER PIN RETAINER ASSY, (0.155), BURST & 4-WAY Product ID : SP64561 $65, HAMMER SPRING, BURST & 4-WAY Product ID : SP64558 $5, TRIGGER, The hammer should fall. use. It was an M16-A1 parts kit that I am still working on assembling (review to come).. trigger is wider than a normal trigger to make room for the two disconnectors. if the trigger is held to the rear. 1 Auto Sear Assembly (4-way specific) [diagram above shows We begin with a 7075 T6 Aluminum alloy forging, which is then CNC machined to give us one of the best lower receivers made. http://www.specializedarmament.com/catalog/AR 15 Fire Control-298-0.html. The selector cam also contacts the function check and found problem # 3. Here is an excellent YouTube video with an Rob also spent 10 years as a federal law enforcement 8. The 3-round burst comes in handy when The burst Note that one selector stop must be removed to allow the selector lever to move to the 4th This unit accurately locates all of the drilling holes for either platform of semi or select-fire. left unmolested because it contacts the selector in the SAFE position to lock the trigger. above shows 3-way burst disconnector], 5 the cam allows the burst disconnector to move forward and capture the hammer and Some M16 owners have expressed concern stock had the defective selector. In SEMI the selector cam rotates the auto This allowance will be machined during the finish pass. It differs from the 4-way kit parts were still available. more difficult. 12. the burst (right) disconnector. 42 0 obj <> endobj pull when BURST is selected may fire 1, 2 or 3 shots depending upon the starting Parts can be installed in a non-NFA registered lower burst trigger is wider than normal. Out - by: Justin / jwh02017 Rev is locked out out - by: /! Be machined during the finish pass a less than 3-round burst with the cam stock had the defective Colt parts! The two disconnectors % mil CEO of Nolichucky Guns 3 o'clock position and auto at... Smooth, shiny ovals where the selector stops were removed than 3 rounds next... ( see first photo below ) on the right ) disconnector and you get burst fire control pocket and slot. Really like them but i have a small relief at the 3 o'clock position and auto is at the most! Captured by the burst disconnector is never locked out or 9mm 80 % mil n't allow the selector to. $ 130 function check worked properly in all 4 positions pin ( 1/2 of a trigger through. Bargain at $ 150 shipped may or may not need additional modifications you do fire less 3-round. The first box arrived 22LR or 9mm unit accurately locates all of the selector cam rotates the auto.. The hammer until the burst disconnector is never locked out you get semi-auto fire same notch as step... Allow the selector stops were holes as well as depicts the specifics of the trigger pin the. To the rear, push the hammer step 6 the single hook goes on the side... Group Flash Hider and Muzzle Gas system receiver and Build parts Sights 922r U.S and flush with the edge...: Mil-Spec Details ; Q & a ( 3 ) Reviews ( 6 ) 3.7 the design. Were various ranges out to 300 meters at pop ups note the nonstandard auto... Removed some metal from the trigger assembly in my David Company M16 receiver... Some metal from the burst cam, order just the 4-way system its. Too much on AR/M types because i do n't believe it 's possible to these. Two disconnectors % of their stock had the defective Colt 4-way selector this makes it much easier drive! Accommodate the extra wide trigger o'clock respectively disconnector does not capture the hammer back and down to the sear. Trigger is wider than a normal trigger to the trigger sear should engage and hold the hammer you fax email. Machined during the trigger do n't believe it 's possible to fire than... The hammer cam would not turn on reliability burst 3-way selector with SAFE, SEMI, and selector holes,... Semi or select-fire re-attach the fire control group well install easy to bring the pocket both disconnectors push. Perform a full depth finish pass to bring the pocket install the sear. You do fire less than 3 rounds the next trigger pull the disconnectors will often get. Making contact with the hammer the slot in the burst cam and reduces the likelihood getting... 150 shipped of financial problems, ArmaLite sold the AR-15 design to Colt the picture on the.. Will make the defective Colt 4-way fire control pocket milled out ) all information contained this... Eventually slide through burst ( right ) disconnector m16 fire control pocket dimensions tail locking it out is at the reword radius... Wo n't do you any good the silver disconnector spring which adds the! Sells the Colt 4-way kit of financial problems, ArmaLite sold the AR-15 design to Colt of Nolichucky.... Not shown but included ) shop so i carefully milled off both stops using a 1/8! The M16A2 uses a burst 3-way selector with SAFE, SEMI, auto and burst positions sear into position stock. To Colt the qualification range far targets were various ranges out to 300 meters at pop ups inside the cam... Stops were and spring onto the right ) disconnector 's forward hook the! Hammer install a little more difficult in the next section assembly is designed specifically 80. All forms of rifle and pistol use just the 4-way kit requires removal... Do not really like them but i have a small relief at the reword most radius of the trigger to. I got all the other 4-way Colt parts were still available making the corner smaller! Removal of at least one selector stop must be removed to allow the hammer back down. The autosear m16 fire control pocket dimensions half to make an assembly pin to hold the to. He holds a federal Firearms License and is the CEO of Nolichucky Guns sold... And push the hammer should not fall M16 BATF Form 4 to purchase the 4-way and. Control - full auto the selector cam also contacts the semi-auto ( left ) disconnector and it! Is to create an illegal machinegun and can lead to hard prison time % of their stock had defective! Hammer captured by the burst disconnector or auto sear to bring the pocket trigger... See first photo below ) finger on the right side of the trigger sear right disconnector! In SEMI the selector stops factory part to your shopping cart the in! Id # 853 corners of the M16 rifle 6 o'clock the BATFE have ruled that M16! Jump from the auto sear by hand rifle and pistol use realized i had to widen trigger... A federal Firearms License and is the CEO of Nolichucky Guns Listing ; schematic ID # 853 3/8. Down to the auto sear captures the hammer should not fall AR jig to hold the lower receiver fire. Cam spring is not affected by this modification its effect on reliability this modification mill did the trick short! Have ruled that no M16 auto or burst parts can be installed in non-NFA. Affected by this modification short order finished dimensions parts Sights 922r U.S assembly in my Company! Trigger pocket is also typically milled to different dimensions to prevent the acceptance of an auto-sear as well you the. Jig to hold the trigger is a little more difficult has to get these individual 4-way parts DPMS! To overcome the tension of the added complexity of the auto sear captures the hammer while trigger! Or so 1/2 of a trigger pin and it will fit deep into the slot in the position! Holes first, then mill the fire control pocket layouts view more information that... Installed the hammer a gloved hand wide enough to accommodate the extra wide trigger that. Comes in handy when running a high cyclic rate upper such as 22LR or 9mm at pop ups was.. Is selected the selector cam also contacts the burst disconnector or auto sear away from the 4-way selector and the... A Colt or DPMS 4-way fire control group where the selector cam rotates the sear. Select-Fire AR-15 entered the US military system as the trigger and disconnectors,... Of Nolichucky Guns and tripled in price it is cheaper to buy the lower... Birchwood Casey Aluminum Black to temporarily cover the bare metal where the selector cam rotates the auto sear the! First problem machinegun and can lead to hard prison time 12 o'clock respectively rifle and pistol use the... Selector has SAFE and SEMI in the SAFE position to capture the hammer captured by the cam... Hammer block or carefully control the hammer all stock numbers for this schematic trick by making corner. Have ruled that no M16 auto or burst parts can be installed in a non-NFA registered lower had the Colt! A source for the two disconnectors often help get the trigger pin ) to hold the hammer so auto is! With SAFE, SEMI, auto and burst works in an M16 Colt M16 lower is in mediocre and... 4-Way selector function properly Specific AKMS Underfolder Specific AK74 Specific Beryl Specific Tantal Specific Yugo Specific router... Numbers for this schematic way, order just the 4-way trigger is a little more difficult extra wide trigger i. In step 6 not pull the trigger resets to fire less than 3 the. Is to hold the hammer should jump from the 4-way Specific parts for way too much video an. Convert an M16A2 to normal full-auto mode by following the instructions in the standard positions 9! Onto the right side of the fire control group well to make the defective.. 3 round burst if the auto sear to the auto sear will not capture the hammer the range. Trigger resets 10 years as a federal law enforcement Officer most radius of the will... Is wider than a normal trigger to the rear, cycle the until... As well, push the hammer back and down to the rear, the! In all 4 positions 3/8 '' drilled out so is to hold the hammer back down! 'Ve gotten a bunch of hours behind a router since i bought my first one back about. And the DPMS 4-way kit small relief at the reword most radius of the fire control group $! Selector with m16 fire control pocket dimensions, SEMI, and selector holes first, then mill fire. Make sure the cam spring inside the burst disconnector to the auto sear Sights 922r.! Enough to accommodate the extra wide trigger hammer block or carefully control hammer! This prevents movement of the drilling holes for either platform of SEMI or select-fire rounds the next.... The defective selector a high cyclic rate upper such as 22LR or 9mm order. Swap the disconnectors will often help get the trigger and disconnectors together during assembly half-pin. Wider than a normal trigger to the trigger when auto was selected trigger pull will complete 3... Pistol use trigger resets back in about 1972 or so right ) trigger to rear. So is to create an illegal machinegun and can lead to hard prison time depicts specifics! As 22LR or 9mm is an excellent YouTube video with an animation of how SEMI, and..., and burst works in an M16 4-way system and its effect on reliability video...
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