The Crimson Trace CTS-1520 Dovetail Mount Combo Kit lets you mount a best-in-class red dot on your trusted Smith & Wesson or Glock pistol. This kit uses the existing dovetail notch to secure the low profile adapter plate to the slide. Then simply attach the included Red Dot sight to that adapter plate. The Dovetail Mounting Kit is compatible with some of the most popular Smith & Wesson and GLOCK pistols on the market today. The CTS-1250 Electronic Sight is a Compact Open Reflex Sight for pistols. Featuring a 3.25 MOA round aiming dot, the CTS-1250 will elevate your pistol's performance instantly. Easily user-installed by utilizing an industry standard mounting interface. Features Intelligent Power Management, after 10 hours the sight will automatically enter sleep mode. Mount type Dovetail, Docter, Burris FastFire, JP Enterprises, Vortex Venom and Vortex Viper Pattern Footprint