Weaver Mounts 48001 Top Mount Base 401S Silver Smith & Wesson L/K/N Frame

The Weaver Mounts 48001 Top Mount Base 401S is a 1-piece scope base built specifically for Smith & Wesson L, K, and N frame revolvers. Cut from lightweight aluminum and finished in silver, this top-mount base provides a solid, low-profile platform for attaching optics to a handgun receiver.

The 401S uses the classic Weaver-style cross-slot pattern, accepting any standard Weaver or Weaver-compatible rings (sold separately - rings are not included). Its design allows the shooter to mount a red dot, reflex sight, or traditional scope directly to the revolver. The rigid aluminum construction keeps added weight to a minimum while maintaining a stable optic platform.

Designed as a handgun accessory (Mount Type: To Receiver), the 48001 is a straightforward optic-mounting solution for owners of S&W L, K, and N frame revolvers looking to add electronic or magnified optics to their firearm.