Aimpoint Patrol Rifle Optic is designed with input from current and former professionals. This Optic incorporates many never before seen features to maximize this sight's performance within the challenging conditions faced by modern law enforcement. The Aimpoint PRO sight comes in a ready-to-go kit at a budget friendly price, a concept that appeals strongly to Law Enforcement units.Complete and ready to mount, it comes equipped with flip covers, a black front flip cover and a transparent rear flip cover that allows the user to engage a target with both lens covers closed in an emergency situation.Unique Features:Always ready - always on. Turn it on for up to 3 years using one single battery. No need to fumble with switches prior to use.2 minute of angle red dot for accurate target engagement at all distances.Compatible with all generations of night vision devices and may be used with all Aimpoint Magnifiers and Concealed Engagement unit.Modular mount set up for use on flat-top AR15, M4 Carbine and M16 rifles. (Adapter available for carry handle mounting)Removable spacer. Remove for use on weapons such as shotguns and sub-guns, AK47, Type 81, BD08 and weapons with a low line of sight.