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: BSA Models CF2 & Monarch LA 7mm, 270, & 30-06Raptor Arms Model same as Remington 700 LARemington Models 40X Long Action, 700 Long Action, 725 Long Action Notes: This is a 1-piece baseMounting Hardware Included