This Remington manufactured second variation firing pin spring is for the model 12 slide action rimfire rifle which uses the round type firing pin and is in very good condition exhibiting a brown patina and having 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: 741138 & 802984
12-C: 663586
