Fits Factory Drilled & Tapped Revolvers
Ruger - Mounts the scope low on all single and double action revolvers. Requires drilling and tapping two holes. Smith & Wesson - Remove the rear sight and quickly install on newer revolvers drilled and tapped at the factory. Locates the scope on the top strap, over the top of the grip for better balance. Accepts Weaver-style rings.
Big Book Catalog, Issue:67, Page:246
SPECS: Aluminum, anodized finish, black or silver. 4" (10cm)
long, includes mounting screws. S&W fits K, L and N frame.