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 1586, rear
CIL 950 and 950-C, rear
Ithaca LSA-55 and LSA-65, front or rear
Knight MK-85, BK-92 and T-Bolt flat receiver muzzleloaders, front or rear
Sako Whitetail Hunter, front or rear
Savage 10, 12, 16, 510 and 512SA, rear
Savage Striker pistol, rear
Savage 110, 111, 112, 116FSS LA, 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