This Marlin manufactured first variation complete sideplate assembly with the alloy buffer is for the early model 99M1 semi-auto rimfire rifle with the ejector as part of the left side feed throat. This assembly has an aluminum buffer and is in very good condition with light wear. (file photos)
NOTE: Firearms with the following year/serial number have been observed with this part:
N.S.N. -(KH) November 1964
