Weaver

Each Weaver base is machined to the tightest tolerances for a custom fit. They are 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. - Fits: - Mossberg Models 25 26 42 46M 140 142 146 45-46 with 3/4 dia. bbls (Front) - Remington Models 12A & 121 with 3/4 diameter barrels (Front) - Savage Models 4 & 5 (Front) - Stevens Models 56 & 66 (Front) - Winchester Models 57 & 69 (Front)