Vortex Defender-XL Micro 1x Red Dot - 2 MOA Dot - The rush of competitive shooting may bring us all together. But when you want an optic that sets you apart, depend on the Defender-XL. Target to target. Stage to stage. It's built tough as nails around a massive sight window that delivers greater peripheral vision and increasing speed for follow-up shots so you always come out on top. FEATURES: Large Hard Coated Aspherical Lens: Large distortion free sight picture.; Aspherical Lens: For distortion-free sight picture and truer colors.; ShockShield Polymer Insert: To protect against hard, daily abuse.; Fast-Rack Texturing: Aggressive texturing on face of optic for racking slide off any surface.; Motion Activation With 10 minute Auto-Shutoff: Automatically activates with motion while 10 minute auto-shutoff saves battery life.; Button Lockout: Prevents accidental brightness adjustment during use or transport.; Top Mount Battery: Easy battery change without having to rezero your optic.; 10 Daylight Bright Brightness Settings: Daylight bright, illuminated center dot aids in faster center-point acquisition in bright daylight conditions.; Night-Vision Compatibility: The lowest 2 settings are night-vision compatible.; Parallax Free: All red dot and holographic sights will exhibit some small amount of parallax. Matching current industry practice, this small amount would be considered "parallax free" and will make a negligible difference in performance.; Unlimited Eye Relief : Non-critical eye relief for rapid target acquisition.; Low-Glare Matte Black Anodized: Corrosion and wear resistant anodization provides low-glare matte surface and helps camouflage the shooter's position.; Single-Piece Chassis: Compact and lightweight.; Waterproof: O-ring seals prevent moisture, dust and debris from penetrating for reliable performance in all environments.; Fogproof: Designed to withstand a wide range of temperatures.; Shockproof: Rugged construction withstands recoil and impact.; INCLUDES: Vortex Defender-XL Red Dot: DFXL-MRD2; Glock MOS Adapter Plate; Picatinny Rail Mount; Rubber Cover; Lens Cloth; Battery; Custom Tool; 5 Sets of Common Mounting Screws;