Weaver Top Mount 401S Scope Mount – Silver, Fits Smith & Wesson L/K/N Frame
Weaver invented the cross-slot base pattern that the whole industry now calls a Weaver rail. Their mounting hardware has been the affordable, available answer on American hunting rifles for generations. A one-piece mount replaces the separate base-and-ring stack with a single machined unit. Fewer joints means fewer places for the system to shift, which is why precision and duty shooters keep moving this direction.
It mounts directly to the receiver, so fitment is specific to the action it was machined for — check the fit before ordering. Aluminum construction keeps weight down without giving up the rigidity a mount needs.
This one is machined specifically for the Smith & Wesson L/K/N Frame. Mounting hardware is action-specific, so confirm your exact model and generation before ordering — a base that is close but not correct will not sit square.
Specifications
- Model: Top Mount Base
- Mount type: To Receiver
- Material: Aluminum
- Finish: Silver
- Fits: Smith & Wesson L/K/N Frame
- Part number: 48001
Covered by Weaver's limited lifetime warranty. Ships from WBT Guns, a licensed FFL dealer serving shooters since 2012.
