This Remington manufactured second variation complete breech bolt assembly is for the Sportsman 48 semi-auto shotgun in 20 gauge and is in very good condition with light wear. This assembly consists of the second variation breech bolt (no legs), extractor, extractor plunger, extractor spring, late 2 15/16" long firing pin, firing pin retaining pin, firing pin retractor spring, left & right links, link pin, late variation locking block, locking block pin, and the second variation slide. (file photos)