Weaver

Each Weaver base is machined to the tightest tolerances for a custom fit. They are designed to fight the effects of recoil with a square-cut notch that precisely mates to the sturdy cross bolt in every Weaver detachable ring. - Fits: - Smith & Wesson Models 29 629 625 686 & L K & N Frame Revolvers (Factory Drilled) - Taurus L K & N Frame Revolvers (Like S&W Factory Drilled)