Ruger Rear Sight Blade For Mark I, II, III Target, Bull Barrel...MR05901

Ruger Rear Sight Blade For Ruger Mark I, II, III Target,

Bull Barrel, Competition, Government,

22/45 Bull Barrel Models

Ruger Part # MR05901

Factory Original Replacement Part

**Please note not all parts are "drop in", some models may require fitting. As with all gun parts some installations may require disassembly and reassembly. Some parts may require installation by a qualified gunsmith.