The BFSIII Binary Firing System is a three-position trigger for AR platforms, which is ideal for recreational, tactical and competition use. It features a three position selector that allows the user to switch from Mode 1 for safe, Mode 2 for traditional semiautomatic or Mode 3 for binary mode. In the binary mode position, it will fire one round on pull and one round on release, making it one of the fastest semi-automatic triggers on the market. The BFSIII provides greatly reduced split times between rounds and the ability to place two separate shots into a tighter group. It works for most AR platforms including AR10 (308 WIN), AR15 and pistol caliber carbines. It also works on both 9mm and .22LR uppers without modification.