AR15 TO M16/M4 FA DRILLING JIG

cults3d

Please check with your local laws before attempting to modify your Lower. This is a full-auto sear drilling jig for converting your AR-15 to accept the M16/M4 sear. Clamp the jig in place, ensuring that the top guide is flush with the lower's top and the round peg is inserted into the safety hole. Drill using a 2.5mm drill bit on both sides of the Lower, then ream the holes with a 3mm drill bit for the final dimension. Note: I'm open to suggestions and help in improving the design and proof of concept. Don't forget to check out my other cool designs and follow my weekly dose of uploads. Enjoy!