Weaver 48401 Top Mount Base Silver S&W L/K/N Frame Revolver

The Weaver 48401 Top Mount Base transforms Smith & Wesson L, K, and N frame revolvers into optics-ready platforms. This silver-finished mount provides a rock-solid foundation for red dot sights, scopes, and other optical devices on classic wheelguns.

What Makes This Different

Unlike temporary rail adapters, the 48401 integrates directly with the revolver's frame geometry for maximum stability. The precision-machined aluminum construction maintains zero under heavy recoil while adding minimal weight to the firearm. This mount eliminates the need for aftermarket modifications or permanent alterations to valuable revolvers.

Key Features

• Compatible with Smith & Wesson L-frame (.357/.41/.44), K-frame (.38/.357), and N-frame (.44/.45/.500) revolvers
• Aircraft-grade aluminum construction with corrosion-resistant silver finish
• Standard Weaver/Picatinny rail interface accepts most optics
• Low-profile design maintains iron sight co-witness capability
• Tool-free installation with included mounting hardware
• Reversible design accommodates left and right-handed shooters
• Maintains revolver's original balance point and handling characteristics

Field testing demonstrates consistent point-of-impact retention through hundreds of full-power magnum loads. The mount excels in hunting applications where quick target acquisition matters, particularly for dangerous game or moving targets. Competition shooters benefit from faster sight picture acquisition in ICORE and steel challenge events. The weatherproof finish withstands harsh outdoor conditions without corrosion or finish degradation.

Technical Specs

• Material: 6061-T6 aluminum alloy
• Finish: Hard anodized silver
• Rail Length: 3.5 inches
• Weight: 2.1 ounces
• Height: 0.75 inches above frame
• Compatible Frames: S&W K, L, N series revolvers
• Mounting: Direct frame attachment
• Country of Origin: USA

This mount represents the most reliable method for adding modern optics to classic Smith & Wesson revolvers. Professional gunsmiths and serious shooters choose Weaver mounts for their proven track record and precise manufacturing tolerances.