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: - Browning BLR with flat top (older models)(Front & Rear) - BSA other High-Powers (Front & Rear) - Herters U9 BSA Action (Front & Rear) - Marlin 39A &39D Century octagon bbl.(Rear) - Voere 2130 (Front & Rear)