Universal aluminum scope base for classic rimfire and centerfire rifles. Machined to tight tolerances with Weaver's cross-lock design. Fits Remington, Winchester, Savage, Marlin, Mossberg, Stevens, and H&R models.
The Weaver #12 Top Mount Base represents a time-tested solution for mounting optics on a wide variety of rifles. This single-piece aluminum base delivers the simplicity and reliability that generations of shooters have come to expect from Weaver.
This base is designed for use on:
Rimfire Models: Marlin 80, 81, 900, 917, XT-22, XT-17; Mossberg 50, 51, 151, 152, 350, 352; Remington 514, 550; Savage 6, 7; Stevens 57, 76, 85, 87; Winchester 74
Centerfire Models: H&R 800; Marlin 80, 81, 900, 917; Mossberg 25, 26, 42, 46M, 140, 142, 146; Remington 514, 550; Savage 4, 5, 6, 7, 219; Sears 42, 43; Stevens 56, 66, 76; Winchester 47, 57, 69, 69A, 72, 74
The Weaver #12 requires no gunsmithing or firearm modifications. Simply align the base with the mounting holes on your rifle's receiver and secure with the included screws. The result is a rock-solid platform for your scope rings and optics.