This Remington manufactured fourth varaition rear sight assembly is for the No. 6 falling block rimfire rifle and is in very good condition exhibiting a brownish gray patina with honest wear. (file photo)
Note: Remington No. 6 falling block single shot rimfire rifles with the following calibers and serial numbers have been observed with this part:
22 Rimfire: 426677
32 Rimfire: 407776
