Vortex Defender-ST Red Dot - 3 MOA Dot - The DO-IT-ALL Micro Red Dot. Handguns. Shotguns. Offset on a carbine. Whether running drills at the range or holding the line during rigorous duty use, the Defender-ST is ready when and wherever you are. Rugged and reliable? It's a given. Large sight window? Absolutely. Motion-activation and a dot with adjustable brightness deliver superior target acquisition, adaptability in all lighting conditions, and faster follow-up shots. Experience what shooters mean when they discuss the ideal, all-round red dot. With the Defender-ST, you're not just range-ready, but armored for the toughness and adaptability your world demands. Large Hard Coated Aspherical Lens - Distortion-Free Sight Picture and Truer Colors; Motion Activation; 10 Minute Idle Auto-Shutoff to Save Battery Life; Shockshield Polymer Insert; Waterproof; Deltapoint Pro Foot Print; Fast-Rack Texturing; Includes: Glock MOS Adapter Plate, Picatinny Mount, Rubber Cover, Lens Cloth, CR2032 Battery, Custom Tool, Most Common Mounting Screw Set;