This Marlin manufactured barrel retaining pin is for the Glenfield model 75 semi-auto rimfire rifle and is in very good condition with light wear. (file photo)
Note: Marlin / Glenfield model 75 semi-auto rimfire rifles with the following serial numbers have been observed with this part:
1967: N.S.N.
1970: 70231392
1972: 72223621
1973: 27287588
1974: 26182957
1975: 25294312 & 25425523