Fits 1911 Auto and clones, Government length frames. The most rugged, most foolproof scope mount ever designed for the 1911 Auto. Attaches to the dust cover; places the scope forward, over the top of the slide for improved balance and faster sight or red dot alignment. Lightweight, rugged mount won't flex , even when used with major power factor loads. Enhances reliability, does not interfere with ejection. Clearance cut for Colt, Enhanced Slides. Includes installation instructions and Allen mounting screws.