Aimpoint CompM4s No Mount 1x Red Dot - 2 MOA Dot - The Aimpoint CompM4s was designed for users who require a professional quality red dot optic for use under extremely harsh conditions. The CompM4s is currently used and trusted by top tier end users throughout the free world. This optic comes without any mount to allow users to equip the optic with the after-market mount of their choice. The CompM4s features a low battery compartment, and the high strength aluminum alloy housing is coated with a non-reflective hard-anodized finish. The sight is completely sealed against the elements and is submersible to 150 feet. The 2 MOA red dot reticle allows for enhanced speed on target and increased first shot hit probability. The CompM4 comes equipped with black rubber bikini style rubber lens covers. The optic is also compatible with magnifiers such as the Aimpoint 3XMag-1 and 6XMag-1. Features: 2 MOA red dot for precision and fast target acquisition; Battery life: 80,000 hours (over 8 years) of constant operation with one battery on setting 12 and over 500,000 hours in NVD settings; Battery type: AA battery (included); Low battery compartment; Type classified as the U.S. Army's M68CCO (Close Combat Optic); Removable Rubber Bikini lens covers; Front lens opening is threaded for addition of killFlash anti-reflective device (ARD); Hard anodized non-reflective surface; 16 brightness settings: 7 night vision compatible settings and 9 daylight settings; 1X (non-magnifying) operationally parallax free optic; Submersible to 150 feet (45 meters); Temperature span -49degF to +160degF Weight 9.4 oz / 268 g (sight only);