This Remington manufactured third variation cartridge retainer is for the late manufactured model 12 slide action rimfire rifle in 22 S, L, & LR caliber. The overall condition is very good with light wear. (file photo)
Note: Remington model 12 slide action rimfire rifles with the following serial numbers have been observed with this part: 681973 & 789956
12-A: 741138, 802984 & 806842
12-C: 640490, 663586, 722004 & 830348