This Marlin manufactured third variation feed throat with three raised circular studs (two on the left and one on the right) is for the Glenfield model 60 semi-auto rimfire rifle which uses the ejector/lifter spring and is in very good condition with light wear. This feed throat lacks the integral ejector that the 2nd variation has. (file photo)

Note: Firearms with the following years of manufacture and serial numbers have been observed with this part:

1974: 26360250

1975: 25311069, 25359287 & 25404905 & 25503444

1976: 24498679 & 24500654

1977: 23441980