Weaver Mounts 48019 Top Mount Base 19 Black Winchester 1903

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: - Anschutz 153 Deluxe (Front & Rear) - CIL 900 (Front & Rear) - H & R Models 232C (10 Ga.) & 980 Ultra (Front & Rear) - New England Firearms 10 Gauge Shotgun (Front & Rear) - Savage Models 99 and 1895 (Front) 25 Octagon barrel (Rear) - Winchester Models 1903 61 round barrel & 63 (Rear)