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.
H&R 755, 765, 852 and 865, front
Marlin 80, 81 and 980, front
Mossberg 40, front
Mossberg 320, 340, 342 and 620, front or rear
Remington 25 and 514, front
Savage 3, front
Sears 42 and 43, front
Stevens 53, front
Winchester 60, 67 and 68, front or rear; gunsmithing required
This is only a single mount. You will need to order two mounts for mounting a scope.