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The Grand Slam Steel Top Mount Base - #S36 (Matte Black) from Weaver has been machined to tight tolerances for a custom fit. A square-cut notch mates to the sturdy cross bolt in every Weaver top mount ring.
Standard rear base for:
BSA Monarch Medium Action in 222, 243 & 308, CF2, Monarch Long Action in 7mm , 270 & 30-06
Mossberg 100 ATR, 1500, 1700
Enfield with receiver cut down like a Remington 721
Herters U9 Round Receiver
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 Loader
Smith & Wesson 1500, 1600 & 1700
Standard front base for:
In the Box
Weaver Grand Slam Steel Top Mount Base - #S36 (Matte Black)