Built for law enforcement, the Aimpoint PRO or Patrol Rifle Optic features a hard-anodized 30mm tube, 3 years use on a single battery, band-pass coating on the front lens for compatibility with all generations of night vision, QPR2 mount with a removable spacer and torque-limiting twist knob, and a 2 MOA red dot for maximum accuracy at all distances, no matter the conditions.