This Remington manufactured magazine screw is for the model 12 slide action rimfire rifle and is in very good condition with light slot wear.  (file photo)

Note: Remington model 12 takedown slide action rimfire rifles with the following serial numbers have been observed with this part:

12-A: 3867, 30310, 100823, 374065, 741138, 802984 & 806842

12-C: 229853, 303506, 409187, 500140, 600364, 607712, 640490, 663586, 722004, 789956 & 830348

12-CS: 225240