The silver Top Mount Base #402S from Weaver has been machined to tight tolerances for a custom fit. This aluminum base offers maximum strength so that the rings will hold tight.
Compatibility
Rear Extension for:
Navy Arms County Boy Muzzleloader
Savage Axis Series, 10, 12, 110, 112 (all long and short action AccuTrigggers), 10 ML II
Stevens Savage / Stevens 200
Winchester 52 (same hole spacing)
Anschutz 1568
Browning Bolt Action BBR, Hi-Power, other calibers (older models), BBR (Bolt Action), long and short actions
Churchill 950, 950-C, 972-C
Marlin 455, MR7
Mauser 1.4" diameter receiver ring (98FN)
Navy Arms County Boy Muzzleloader
Parker-Hale 1000, 1000C, 1100, 1200, 1700
Colt 57
Cooey 71
Enfield Winchester 70
H&R 300, 301, 330 & 370 (Pre 1973)
Herters J9
Savage Axis Series, 10, 12 & 16 (short actions); Striker, Pistol, 510, 512, 516 S/ A, 10 ML (2-piece only) pre-2003 models, 110, 112, 116 (long actions); 210 Shtg (use X-high rings) pre-2003 models, 10, 12, 110, 112 (all long and short action AccuTrigggers), 10 ML II
Sears 50, 51, 53
Stevens 110E, Savage /Stevens 200
Weatherby FN Mauser style actions
Winchester 52 (same hole spacing), 70 Long Action (same hole spacing), 670, 770, 70 Short Action (1984+), 70 WSM
Front Extension for:
Notes
Note: For the 1.4" diameter Mauser Receiver Ring (98FN) shimming is probably required for a perfect scope alignment. The rear base may require modifications for correct fit to military actions.
Note: For the 10, 12 & 16 (short actions); Striker, Pstl , 510, 512, 516 S/ A, 10 ML (2-piece only) pre-2003 models, 110, 112, 116 (long actions); 210 Shtg (use X-high rings) pre-2003 models, and Stevens Savage / Stevens 200 for shorter tube scopes or red dot scopes use #402 extension front base or one-piece base if available. Extension base allows an extra 0.689".
Note: The Winchester 52 (same hole spacing) may require bolt and/or safety alterations, without which the firearm will not function safely and properly. Consult with a qualified gunsmith. The handiest way to pinpoint the correct base for the Winchester 52 is to check the spacing of the tapped holes for the rear base and compare it to the hole spacing for the front base. When the hole spacing is the same, for Model 52, use 25+ 57.
UPC: 076683484307