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:
Anschutz 153 Deluxe, front or rear
CIL 900, front or rear
H&R 232C 10 gauge shotgun and 980 Ultra, front or rear
New England Firearms 10 gauge shotgun, front or rear
Savage 25 octagon barrel, rear
Savage 99, 1895 and 1899, front or rear
Winchester 03 and 63, rear
Winchester 61 round barrel, rear

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