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.

No.61 mount

Fits:
Anschutz 1568, rear
CIL 950 and 950-C, rear
Ithaca LSA-55 and LSA-65, front or rear
Modern Muzzleloader Knight MK-85 and KB-92, front or rear
Modern Muzzleloader T-Bolt flat receiver, front or rear
Sako Whitetail Hunter, front or rear
Savage Pre-2003 10, 12, 16, 510, 512 and 516 short action, rear
Savage Striker pistol, rear
Savage 110 E/S, 111, 112 R/V/FV and 116FSS long action, rear
Savage 210 shotgun made before 2003, rear
Savage 10 muzzleloader, rear
Shilen flat top receiver, front or rear
Stevens 110E, rear
Tikka flat receiver, front or rear

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