The Master Lock No. 90KADSPT Keyed Trigger Lock features a steel and zinc body for maximum durability. The protective rubber pads protect gun’s finish from marring or scratching. The tumbler is a 4-pin cylinder that helps prevent picking. Fits many handguns, rifles, and shotguns. All locks are keyed alike, one key opens all locks. The Limited Lifetime Warranty provides peace of mind from a brand you can trust.