Franklin Armory BFS III 5.56mm NATO M4-Built Lower with Binary Trigger

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What's in the Box Franklin Armory BFS-III M4 Built Lower Receiver 30-Round Magazine Owner's Manual,The BFSIII Equipped M4-Built Lower Receiver from Franklin Armory comes with a Binary firing system installed. Its a three postion trigger system, Safety, Semi-Auto and Binary. In the binary position the rifle fires one round on pull and one round on release of the trigger. This trigger is ideal for both tactical and competition use. The BFSIII provides greatly reduced split times between rounds, allowing for tighter groups. Trigger Operation Position 1 – Safe (Will not fire) Position 2 – Semi-Auto (Fires 1 round per pull) Position 3 – Binary (Fires 1 round on pull and 1 round on release) Customer Comments   Customer Comments