This Marlin manufactured fifth 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 fifth 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 of manufacture and serial numbers have been observed with this part:

1975: 25311069, 25359287, 25404905 & 25503444

1976: 24498679, 24500654, 24528522 & 24589170

1977: 23441980, 23485890, 23512316 & 23558978

1978: 22330018, 22349652, 22389946, 22436687, 22439159 & 22457946

1979: 21312564, 21418578, 21448907 & 21459280

1980: 20360112 & 20385176