This Marlin manufactured third variation breech bolt Assembly is for the Glenfield model 60 semi-auto rimfire rifle and is in very good condition with light wear. This assembly consists of the third variation breech bolt, cartridge lifter roller, second variation firing pin, firing pin retaining pin, and the complete extractor assembly. (file photo)

Note: Firearms with the following years/serial #'s have been observed with this part: 1978: 22522769