This Marlin manufactured fourth 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 fourth variation breech bolt, cartridge lifter roller, second variation firing pin, firing pin retaining pin, and the complete extractor assembly. (file photo)

Note: Marlin Glenfield model 60 rimfire rifles with the following year/serial number have been observed with this part:

1974: 26360250

1975: 25283450