This Remington manufactured ejector spring screw is for the earlier model 12 slide action rimfire rifle in 22 S, L & LR caliber that uses the early variation ejector spring 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: 23641, 204323, 351695, 356902, 374345, 637453 & 656863

12-A: 3867, 30310, 100823 & 374065

12-C: 229853, 303506, 408616, 409187, 500140, 597770, 600364, 607712 & 640490