Weaver Top-Mount Extension Scope Base #40A- Gloss Black

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.

Technical Information:

Material: Aluminum
Style: Weaver
Included: Two flat head screws, extension base

Fits:

BSA Models Monarch Medium Action in 222, 243 & 308, CF2, Monarch Long Action in 7mm, 270 & 30-06
Churchill Highlander
Colt Sauer
Enfield receiver cut down like Remington 72
H & R 317 & 322
Herters U9 Round Receiver
Interarms (Rossi – Stoeger) Howa
Mossberg 1500 & 1700
Raptor Arms Same as Remington 700 Long Action
Remington 700, 78, 40X, 721 & 725 (all Long Actions) in 270, 280, 30-06, 7mm Mag, 300 Win Mag, 264, 375, 458 Cals., 700, 78, 40X, 722 & 725 (all Short Actions) in 17, 222, 223, 222 Mag, 22-250, 243, 6mm & 308 Cal. & 700 Mzl. Ldr.
Ruger M-77 (round top)
Sauer 200
Smith & Wesson 1500, 1600 & 1700
Shilen Round receiver
Weatherby Mark V, Mark V Deluxe & Vanguard