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Weaver Top-Mount Extension Scope Base #40A
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$10.99
MSRP
$10.99
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Updated
Apr 8, 2026
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Description
The Weaver Top-Mount Extension Scope Base #40A is machined from aluminum to fit Weaver-style cross-bolt rings tightly. The square-cut notch matches precisely with the cross-bolt to fight the effects of recoil from changing the rifle's zero.
