This Marlin manufactured second variation breech bolt Assembly is for the early model 40 Coast to Coast semi-auto rimfire rifle with new hold open feature and is in very good condition with light wear. This assembly consists of the second variation breech bolt, cartridge lifter roller, first or second variation firing pin, firing pin retaining pin, and the complete extractor assembly. (file photo)

Note: Model 40 rimfire rifles with the following years of manufacture and serial numbers have been observed with this part:

1971: 71474846