The Possession of an AR receiver with the extra holes and an M16 trigger group at the same time could be … (thanks to DSK Armory for the picture on the right). This goes back to what I mentioned earlier about using a bigger drill to open up a smaller pre-drilled hole. M16 fire control group. M16 Fire Control Group-Full Auto Fire Control Group consists of: Hammer Trigger Disconnector Safety Selector Auto Sear With Pin THESE PARTS ARE INTEND The M16 is a fully automatic weapon and it would be illegal to build one in the "US" - as I was careful to mention. DSK Armory sells the Colt 4-way fire control group for $260 shipped and the DPMS 4-way fire control group for $150 shipped. My post was not so much an answer to the OP but as a warning to members who may not be aware of the NFA that building a true M16 would not be a good idea. However, this is not a rule. Colt then marketed the Colt AR-15 as a semi-automatic version of the M16 … CNC --- M16 Lower receive... by Oliver. The actual lowers have a small relief at the reword most radius of the fire control pocket. - Fire control pocket milled out - By: Justin / jwh02017 Rev. This allowance will be machined during the finish pass. So assembly of the Sportsmans Guide M16 kit into an AR-15 rifle is OK as long as you either use an AR hammer, selector, etc or modify those M-16 parts into AR-15 semi (SP-1) configuration. This difference ... Report Inappropriate Comment More . 12. Unless you are able to get the jig very secure, this size of drill will tend to vibrate and chatter in the hole. See Figure 6. For the second cut, shift the end mill to the opposite side (right side in … Some M16 owners have expressed concern with removing the selector stops from their very valuable M16 lower receivers (typical prices … You will be conventional milling the pocket in a clockwise direction around the lower receiver fire control pocket. Leave an allowance of about 0.010” to 0.020” around the pocket. Be the first to review “M-16 Drilling Jig” Cancel reply. Take note of the milling direction! You must be logged in to post a review. This is a little fast for this size of a drill. The select-fire AR-15 entered the US military system as the M16 rifle. Push the hammer back and down to the cocked position. As long as you do not put M16 fire controls into a semi AR-15 you are ok. Visually rough out the large pocket of the fire control pocket, but not the rear slot, to a depth of 1.250”. Dimensions: 6 × 3 × .6 in: Reviews There are no reviews yet. ArmaLite as a selective fire rifle for the United States armed forces. Perform a full depth finish pass to bring the pocket to its finished dimensions. The trigger pocket is also typically milled to different dimensions to prevent the acceptance of an auto-sear as well. Figure 7.4 The first and only cut on the left side of the lower receiver. Because of financial problems, ArmaLite sold the AR-15 design to Colt. 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