Weaver Top Mount One Piece Base #97 For Remington, Black - 48097 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 Raptor Arms Model same as Remington 700 LA Remington Models 40X Long Action, 700 Long Action, 725 Long Action