Binary Firing System Gen 3Manufacture ID: 5550The revolutionary Binary Firing System will be appreciated by three gun competitors, tactical shooters, and recreational enthusiasts. It features a three position selector that allows the user to switch from Mode 1 for Safe, Mode 2 for traditional Semiautomatic Mode, or Mode 3 for Binary Mode. In Binary Mode, the firearm will discharge one round with every function of the trigger whether a pull or a release. A user can negate the round that would otherwise be fired during the release function by simply moving the selector back to Mode 2 and then safely releasing the trigger. Features:- Easy to installation. No custom fitting.- Better trigger pull. 4.5 pounds, +-.5 pound- The release phase now has a positive reset.- The design eliminates backup disconnector. - Stronger buffer spring (included) reduces the possibility of hammer follow. Specifications: - Works in every AR application: Ar10, AR15, MPX, etc.- Works in the F17 series in .17 WSM WITHOUT modification.- Works on .22LR uppers WITHOUT modification.- Works on 9mm uppers WITHOUT modification.