C-MORE Systems SlideRide Red Dot Sight with Click Switch Heads Up Display for Fastest Target Acquisition Super Bright Red Dot with Adjustable Intensity and Interchangeable Dot Module Infinite Adjustment for Windage and Elevation Featuring Positive Locking Screws Aluminum Body, Click Intensity Switch (12 Positions = Off, 2 NV, 1 Low Light and 8 Day light) Direct Mounting for Custom/After Market Mounts and Glocks (requires C-MORE GAP Mounting Kit for Glocks)