HD-009-S Extreme Service Rear Sight

Plain Black for Ruger SR1911 pistols

This Harrison Design Extreme Service rear sight is the answer to customers who have asked me to produce a fixed rear sight to replace the factory installed adjustable target-style rear sight that Ruger uses on their SR1911 pistols. My sight gives you a rugged, easy handling rear sight with a great sight picture. All edges and corners are radiused to prevent snagging on clothing or your hands. The two-piece design allows mounting on Ruger's "Pocket-Style" sight cut. The sight notch dimensions are our standard .140" wide X .125" deep. This version is a plain black sight with a serrated rear blade.

Installation instructions are available at 


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