Weaver Detachable 417M 1 Piece Top Mount Base for Mossberg 500/590/835   #48440

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.

• Material: Aluminum
• Style: Weaver
• Fits:  Mossberg Models 500 (1997 and after), 500A, 590, .835 Shotguns, & 835
• Mounting Hardware Included