The StrikeFire II is a feature-rich, versatile and reliable choice for shooters who want a quality and affordable red dot sight. Multiple anti-reflective coatings on all air-to-glass surfaces increase light transmission. Allows shooters a choice of dot color. Features sleek rear-facing controls for power on/off and easy adjustment of ten dot intensity levels (lowest two settings are night-vision compatible). Automatically returns to the last dot intensity used when powered up. The 30mm aluminum alloy chassis provides extra-high recoil rating and is waterproof and fog proof. 12-hour auto-shutdown feature maximizes battery life. Typical battery life is 300 hours at maximum brightness and 6,000 hours at minimum brightness setting. The lower 1/3 co-witness cantilever mount model is ideal for AR platforms, positioning the optic bore center 40mm above the base surface. Made by Vortex®.