This video tests the Hoffman Tactical SL-15 V4 lower and the 'Super Safety' active trigger system, which allows for extremely high semi-automatic rates of fire. The Super Safety uses a cam and lever mechanism to reset the trigger as the bolt cycles, distinguishing it from full-auto fire by requiring a single trigger function per shot. The SL-15 V4 is a refined 3D-printable AR-15 lower with integrated grip and reinforcement points.
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