This Remington manufactured simple stamped sheet metal folding tang peep sight assembly is for the No. 6 falling block rimfire rifle and is in very good condition exhibiting a brownish gray patina with light wear. (file photo)
Note: No. 6 falling block rimfire rifles with the following calibers and serial numbers have been observed with this part:
22 Rimfire: S143712
32 Rimfire: S192813