From close-range drills or steel at distance, the Crossfire II is built to grow with you. Quick to set up. Simple to run. It's motion-activated, magnifier and night-vision compatible. Mount it up, and make some noise. SOLAR with Auto D-TEC Technology: Detects light conditions to automatically draw power from solar or battery as needed. Motion Activation with 10 Minute Auto-Shutoff: Automatically activates with motion while 10 minute auto-shutoff saves battery life. 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. Multi-Height Mount System: Lower 1/3 Co-Witness Mount and Low Mount. Low-Glare Matte Black Anodize: Corrosion and wear resistant anodization provides low-glare matte surface and helps camouflage the shooter's position. Single-Piece Chassis: Compact and lightweight. ArmorTek: Ultra-hard exterior lens coatings defend against scratches, oil, and dirt. Fully Multi-Coated Lenses: Anti-reflective coatings on all air-to-glass surfaces provide increased light transmission for greater clarity and low-light performance. Nitrogen Gas Purged: Gas purged and O-ring sealed for fogproof and waterproof performance. Waterproof: Designed to withstand harsh weather conditions. Fogproof: Designed to withstand a wide range of temperatures. Shockproof: Designed to withstand the highest levels of recoil and impact.