This Marlin manufactured first variation feed throat with four raised studs (two on the left and two on the right) is for the early Glenfield model 75 semi-auto rimfire rifle with the ejector as part of the left side feed throat. This feed throat is in very good condition with light wear. (file photos)

Note: Marlin / Glenfield model 75 semi-auto rimfire rifles with the following serial numbers have been observed with this part: 26182957