Rear Compatibility: BSA Monarch Medium Action in 222, 243 & 308, CF2, Monarch Long Action in 7mm, 270 & 30-06, Churchill Highlander, Enfield with receiver cut down like Remington 721, Mossberg 100 ATR, 1500, 1700, Herters U9 Round Receiver, Howa Howa, Raptor Arms same as Remington 700 Long Action, Remington 700, 78, 40X-L, 721, 725 (All Long Actions), 700, 78, 40X-S, 722, 725 (All Short Actions), 700 Muzzle Loaders, Smith & Wesson 1500, 1600 & 1700, Weatherby Vanguard, Mark V standard, 240 magnum, Centerfire Pistol, 224 Varmintmaster, Ultra Lightweight.

Features:Aluminum construction;Weaver-style;Serves as a rear mount for Weaver scope rings or other Weaver-compatible accessories