Nobody makes bases to fit as many guns as Weaver. Yet each base is machined to tight tolerances for a custom fit. They're designed to fight the effects of recoil with a square cut notch that precisely mates to the sturdy cross bolt in every Weaver Detachable Ring. Custom hardened fastening screws come with every Weaver base.

Fits:
Marlin A1 and 50, front or rear
Remington 541S and 541T, front or rear
Savage 19 and 23, rear
Stevens 417, front or rear
Winchester 75 Sporter/Target and 77, rear

Note:
This is only a single mount. You will need to order two mounts for mounting a scope.