Smith & Wesson Rear Sight Blade Kit For K, L, N-Frame
with .146" White Outline Blade, Kit Includes Rear Sight Blade, Windage Nut And Screw.
Smith & Wesson # 191440000
Factory Replacement Part From Smith & Wesson.
**Please note not all parts are "drop in". As with all gun parts some installations may require disassembly and reassembly. Some parts may require installation by a qualified gunsmith.