This Remington manufactured receiver and trigger guard guide pin mounts to the right and left sides of the trigger guard so when it is aligned with the receiver, they hold the two parts in proper alignment. This pin is for the model 12 slide action rimfire rifle 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: 23641, 351695, 356902, 637453 & 656863

12-A: 100823, 374065 & 802984

12-C: 408616, 409187, 597770, 640490 & 722004