Weaver Standard Top Mount Aluminum Extension Scope Base - Matte Black - #40A - FRONT/REAR BSA Colt Remington 48040

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: - 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 Manufacturer Part Number: 48040