The Aimpoint® CompM4 sight, with a high battery compartment, belongs to the CompM4 series, which are the finest sights Aimpoint has ever produced. Improvements include improved energy efficiency that provides up to 8 years of continuous use from a single AA battery. Key Features & Details The CompM4 series of sights are the toughest sights that Aimpoint has ever produced and are the standard infantry soldier sight in many NATO countries. The Aimpoint CompM4s is the latest version of the U.S. Army's M68CCO (Close-Combat Optic), continuing a legacy that Aimpoint has maintained since 1997. The CompM4 has a top-mounted battery compartment, while the CompM4s has a low battery compartment; this is the only difference between the sights. This sight also comes equipped with a killFlash® anti-reflection device and bikini rubber lens covers.
