Weaver part numbers for detachable top mounts, and side mounts are

available by firearm make. Select a make from the dropdown list for details.

Make:

ANSCHUTZ AUTO SHOTGUNS BENELLI BERETTA BRITISH 303 BROWNING BSA CARCANO CARL GUSTAF CHURCHILL CIL COLT COOEY CVA (& BASS PRO EXCLUSIVES) ENFIELD with receiver cut down like: GARCIA GOLDEN EAGLE GROOVED RECEIVER WITH 3/8" DOVETAILS H & R HERTERS HIGH-STANDARD HUSQVARNA INTERARMS (Rossi - Stoeger) ITHACA JAPANESE KNIGHT MUZZLELOADERS KRAG LAKEFIELD LEE-ENFIELD LLAMA (Pistol) MAGNUM RESEARCH MARLIN MAUSER including FN, HVA & SWEDISH MODERN MUZZLE LOADING MOSSBERG MUSGRAVE NAVY ARMS NEW ENGLAND FIREARMS (H & R) NEW HAVEN NORINCO OCTAGON BARREL OR FLAT TOP RECEIVERS PARKER-HALE PEDER SOLI PISTOLS PUMP SHOTGUNS RAPTOR ARMS REMINGTON ROSSI (also see INTERARMS) RUGER SAKO SAUER SAVAGE SCHULTZ & LARSEN SEARS SHILEN SHOTGUNS SMITH & WESSON SPRINGFIELD SPRINGFIELD ARMORY STEVENS STEVENS - SPRINGFIELD TAURUS THOMPSON CENTER TIKKA TRADITIONS U. S. CARBINE VALMET VOERE WEATHERBY WESTERN FIELD WHITE WINCHESTER (Includes Ranger Models)

Notes

1. Shimming is probably required for perfect scope alignment.
2. Rear base may require modifications for correct fit to military actions.
3. Front base may require modification for correct fit.
4. Gun will have to be drilled and tapped.
5. Front base screws may need to be shortened by grinding.
6. May require bolt and/or safety alteration, otherwise firearm cannot function safely and properly. Consult with a qualified gunsmith.
7. Base DOES NOT FIT Rossi Large Frame Matched Pair Combos (all models with 12 GA or 20 GA shotgun barrels).
8. Remove rear sight to use.
9. The handiest way to pinpoint the correct base for the Win. 52 & Win. 70 Long action Rifles is to check the spacing of the tapped holes for the rear base and compare it to the hole spacing for the front base. Does it have:
HOLE SPACING THE SAME
 Model 52: use 46+ 46, Model 70: use 47+ 46
HOLE SPACING DIFFERENT
  Model 52: use 25+ 57 Model 70: use 49A+ 46
10. The Weaver type base built into this rifle will accept Weaver rings but our highest ring (1" See-Thru #49513) still isn't high enough to clear the front sight.
11. The Weaver type base built into this firearm will accept any Detachable Top Mount Weaver Ring.
12. Rifle has Grooved Receiver for Tip-Off Rings.
13. Ruger Mark II Pistols. Weaver only offers a clamp on base with 1" rings (Pistol Mount System #306). Ruger supplies a short or long base and 1" or 30mm rings w/factory drilled and tapped pistols. Contact Ruger at 602-778-6555 for these items.
14. Bolt Clearance problem may exist and scope will not be centered.
15. Base accepts Tip-Off Rings only.
16. TO-9, TO-10 & TO-11 bases accept either Detachable Top Mount Rings or Tip-Off Rings. Each have crossbolt slots and 3/8" grooves for both applications.
17. Must be factory drilled and tapped.
18. One-Piece base attaches to barrel and extends back over receiver.
19. Requires the use of Thompson/Center base adapter.
20. Requires drilling and tapping 4 holes in receiver and relief space cut in stock to clear base.
21. Rear base is positioned on top of receiver and front base is positioned on the barrel. Drilling & tapping required. One-piece base mounts w/2 set screws & newer guns are factory drilled & tapped.
22. For shorter tube scopes or red dot scopes use #402 extension front base or one-piece base if available. Extension base allows an extra .689".
23. WARNING: NOT FOR USE WITH X-FRAME REVOLVERS. USE ON FIREARMS OTHER THAN THOSE LISTED MAY CAUSE INJURY.
24. Top mount base is designed to fit 12GA models only.