New 

Weaver 48445 424M 

Black Matte Scope Mount Base 

Mounting Hardware Included

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

Used as a rear mount on Weatherby Mark 5 Magnum, all Weatherby Magnum calibers except 240 Weatherby Magnum

 Standard 1 piece base for 2 piece system

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