Trigger Group includes All Internal Parts: Hammer, Trigger, Bolt Release & Associated Pins & Springs
Drop in trigger assembly is factory original replacement part for Mossberg models 500 & 590 including "house brand" guns produced for large outlets. Assembly gives proper sear engagement and trigger travel for restored confidence in a treasured firearm. No alteration required.
Big Book Catalog, Issue:66, Page:623
SPECS: Plastic, matte black finish, 4.44" (11.3cm) long 1.2" (3cm) wide, 4.7 oz. (133.3g). Fits Mossberg 500 & 590 and similar private label shotguns with Top Tang Safety (NOT FOR CROSSBOLT SAFETY), 12 gauge ONLY.