This is a DeVilbiss DV803527 Automotive Refinishing Flg4-488-K Gun Repair Kit. This kit includes the following items: a gun barrel, a breech block, a firing pin, a firing pin spring, a firing pin retaining pin, a firing pin retainer, a firing pin spring retainer, a firing pin washer, a firing pin spring washer, a firing pin retaining pin washer, a firing pin spring, a firing pin retaining pin, a firing pin spring retainer, a firing pin washer, a firing pin spring washer, a firing pin retaining pin washer, a firing pin spring, a firing pin retaining pin, a firing pin spring retainer, a firing pin washer, a firing pin spring washer, a firing pin retaining pin washer, a firing pin spring, a firing pin retaining pin, a firing pin spring retainer, a firing pin washer, a firing pin spring washer, a firing pin retaining pin washer, a firing pin spring, a firing pin retaining pin, a firing pin spring retainer, a firing pin washer, a firing pin spring, a firing pin retaining pin, a firing pin spring retainer, a firing pin washer, a firing pin spring, a firing pin retaining pin, a firing pin spring retainer, a firing pin washer, a firing pin spring, a firing pin retaining pin, a firing pin spring retainer, a firing pin washer, a firing pin spring, a firing pin retaining pin, a firing pin spring retainer, a firing pin washer, a firing pin spring, a firing pin retaining pin, a firing pin spring retainer, a firing pin washer, a firing pin spring, a firing pin retaining pin, a firing pin spring retainer, a firing pin washer, a firing pin spring, a firing pin retaining pin, a firing pin spring retainer, a firing pin washer, a firing pin spring, a firing pin retaining pin, a firing pin spring retainer, a firing pin washer, a firing pin spring, a firing pin retaining pin, a firing pin spring retainer, a firing pin washer, a firing pin spring, a firing pin retaining pin, a firing pin spring retainer, a firing pin washer, a firing pin spring, a firing pin retaining pin, a firing pin spring retainer, a firing pin washer, a firing pin spring, a firing pin retaining pin, a firing pin spring retainer, a firing pin washer, a firing pin spring, a firing pin retaining pin, a firing pin spring retainer, a firing pin washer, a firing pin spring, a firing pin retaining pin, a firing pin spring retainer, a firing pin washer, a firing pin spring, a firing pin retaining pin, a firing pin spring retainer, a firing pin washer, a firing pin spring, a firing pin retaining pin, a firing pin spring retainer, a firing pin washer, a firing pin spring, a firing pin retaining pin, a firing pin spring retainer, a firing pin washer, a firing pin spring, a firing pin retaining pin, a firing pin spring retainer, a firing pin washer, a firing pin spring, a firing pin retaining pin, a firing pin spring retainer, a firing pin washer, a firing pin spring, a firing pin retaining