The Weaver #401 Top Mount Scope Base (brand part no. 48109) is a black gloss, one-piece aluminum base machined specifically for factory-drilled Smith & Wesson 29/629 and Taurus L/K/N-frame revolvers. Weaver machines every #401 base to tight tolerances for a custom fit, so it seats consistently on the frame without the rocking or play a loose base can introduce. The mount is designed to Weaver’s own ring standard for maximum clamping strength, keeping your rings and scope locked in place under repeated recoil, and it attaches directly to the receiver. It does not include rings, so you will need Weaver-style rings sized for your scope tube to complete the mount.

Key Specifications

• #401 Application is machined for factory-drilled S&W 29/629 and Taurus L/K/N-frame revolvers.
• One-Piece Top Mount design simplifies alignment versus a two-piece base.
• Aluminum Construction keeps the base lightweight yet rigid.
• Black Gloss Finish matches most factory revolver finishes.
• Direct Receiver Mount attaches straight to the frame.
• Tight-Tolerance Machining gives a consistent, custom fit.
• Weaver-Style Rings Required since rings are not included with the base.

Frequently Asked Questions

What revolvers does this base fit? Factory-drilled S&W 29/629 and Taurus L/K/N-frame revolvers.

Does it come with rings? No, Weaver-style rings sized for your scope are needed separately.

What is it made of? Aluminum with a black gloss finish.

Buy the Weaver #401 Top Mount Scope Base

Mount a scope on your S&W or Taurus revolver with the Weaver #401 Top Mount Scope Base from our scope bases selection. Order online and we will ship it straight to your door from our Lubbock, Texas gun shop.