The Binary Firing SystemA(R) (BFS(TM)) 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 BFS provides greatly reduced split times between rounds, allowing for tighter groups. The BinaryA(R) AR-Elite trigger comes with premium features which includes interchangeable trigger bows. You may now choose whether you want a curved trigger or a straight flat-faced trigger! 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 Patented selector out of BinaryA(R) mode while holding the trigger back * Easy to install * 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, etc.... * Compatible with most Bolt Carrier Groups (BCG) * Great for competition shooters, tactical shooters, and recreational enthusiasts * The BinaryA(R) AR-ELITE comes with interchangeable curved and straight flat-faced trigger bows