US Patent 11959713 Firearm fire control group

A fire control group system for a firearm includes a trigger that includes a trigger base, a trigger extension extending from the trigger base, and an over-travel member coupled to the trigger base at a front end thereof. The trigger base has a sear hook extending therefrom and defining a recess and a transverse bore intersecting the recess. The over-travel member has a contact surface and is moveable relative to the trigger base such that a distance in a vertical direction between the contact surface and the trigger base is adjustable.