The BFSIII for B&T is a 3-Position Trigger. In position 3 it will fire 1 round on Pull and 1 round on Release. This makes it the fastest semi-automatic trigger on the market. The BFSIII is ideal for Tactical and Competition use. The BFSIII provides greatly reduced split times between rounds and the ability to place two separate shots into a tighter group.Some B&T firearms may require slight modifications to the interior of the lower plastic to properly fit our trigger. The modification is still reverse compatible with the OEM 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