This keyed trigger lock will fit most handguns, rifles, shotguns, and MSR's. Easy to install in the trigger guard with positive locking, adjustable ratchet mechanism. The special cushion pads and pins protect the guns finish from marring or scratching. Includes two keys. Features: Easy to install and set Features positive locking with adjustable ratchet mechanism special cushion pads and pins protect gun's finish from marring or scratching