The CompM5s is a high quality and high performance red dot sight from Aimpoint developed for military and law enforcement applications. With the ability to shoot with both eyes open, the CompM5s allows for easy target acquisition. The red dot sight follows the movement of the user's eye, eradicating any need for centering. The CompM5s is compatible with Aimpoint 3XMag-1 and 6XMag-1 magnifiers as well as generations of Night Vision Devices. The CompM5s has a lower battery component than it's similar CompM5 counterpart. The CompM5s from Aimpoint comes complete and ready to mount right out of the box. It also features a flip-up lens cover. The front lens cover is black while the rear is transparent. What makes the CompM5s great is its ability for customization. There is a reason law enforcement and military forces trust Aimpoint - their red dot sights make target acquisition a problem of the past. Features the Aimpoint CompM5s include: Mountable on MIL-STD 1913 Rail system/Picatinny railAdvanced optical lenses with a protective front windowCompatible with every generation of Night Vision Devises2 MOA dot for close combat and long distance engagementExcellent light transmissionRobust housing design, same ruggedness of the CompM4 but with less weightMechanical switch for speed and reliabilityOperational when submersed up to a depth of 150 feetUsable for 50,000 hours of constant operation with one batteryMli>Includes *Low AAA battery compartment*Difference from CompM5 Aimpoint CompM5s (2 MOA AR15 Ready 39mm Spacer w/ LRP Mount) 200500