The Aimpoint PRO (Patrol Rifle Optic) was designed to meet the demanding real-world requirements faced by law enforcement officers who need a non-magnifying, parallax-free red dot sight that can withstand the rigors and abuse of a duty rifle. 
Key Features
Parallax free
2 Minute of Angle (MOA) accurate red dot
Always ready and always on with a high-efficiency circuit that provides a 3-year battery life
1x reflex sight allows for rapid target acquisition and increased first shot accuracy compared to iron sights
30mm hard anodized tube provides a tough housing that is waterproof to 150 feet
6 daylight settings for enhanced visibility in different lighting conditions
Night vision compatible with 4 NV settings