This Remington manufactured firing pin is the early flat type for the series 1909 model 12 slide action rimfire rifle in 22 s, l, & lr caliber and is in very good condition with light 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, 100823 & 374065
12-C: 229853, 408616, 409187, 500140, 597770, 600364 & 607712