If fast, accurate, and dependable describe what you're looking for in a red dot, you've found it. The TSR-1X offers a true 1X, 5 MOA red dot that makes positive target acquisition a breeze. Designed for tactical use, the TSR-1X features 12 illumination settings, including 3-night vision compatible levels. The wide field of view and unlimited eye relief make for a perfect fit with any AR platform. The TSR-1X ships with a standard low and high picatinny mount or may be bundled with ZRODelta's FRZ QD Mount. Powered by one 3v CR2032 lithium battery that gives you 2-3 years of service before needing to change your battery.