Franklin Armory The Binary Firing System GEN 3 BFSIII is a 3-position trigger. In position 3 it fires one round on pull and one round on release, making this trigger ideal for both tactical and competition use. The BFSIII provides greatly reduced split times between rounds, allowing for tighter groups. Not for civilian sales in CA, CT, DC, FL, HI, IA, MD, NJ, NY, RI, and WA Trigger Operation: Position 1 – Safe –Will not fire Position 2 – Semi – Fires 1 round per pull Position 3 – Binary – Fires 1 round on pull and 1 round on release Features: Release round can be canceled by simply moving our Patent Pending selector out of Binary mode while holding the trigger back Smooth trigger pull: 4.5 lbs, +/- 0.5 lbs Positive reset on release phase Enhanced buffer springs for optimal flexibility Works in most AR platforms and calibers including 5.56 NATO, 308 Win, 300 BLK, 9mm, Rimfire Compatible with any BCG Great for competition shooters, tactical shooters, and recreational enthusiasts The AR-C1 comes with a standard curved trigger. Easy Install Warning: Not for civilian sales in CA, CT, DC, FL, HI, IA, MD, NJ, NY, RI, and WA