This Marlin manufactured rear sight assembly has a .075" - .080" wide elevator groove and includes a .070" wide elevator. This rear sight assembly is for the Glenfield model 25 bolt action rimfire rifle and is in very good condition with light wear. (file photo)

Note: Marlin Glenfield model 25 rimfire rifles with the following year/serial number have been observed with this part:

1973: 27521832