SPECS: CompM4 - Aluminum housing, anodized, black, matte finish. 4.7” (120 cm) long, 2.8” (7.2m) wide, 2.8” high. 11.8 oz. (335 g) wt. including mount. 1x magnification. Windage & Elevation: ½" adjustment @ 100 yds (13mm @ 100m). Battery life = 80,000 hrs on one battery on daylight setting, 500,000 hrs on NV setting. Includes alkaline battery (1.5v, AA). Submersible to 150 feet (45m). 40L – Aluminum base, stainless steel sight body, steel apertures. 2-1/8" (5.4cm) long, 1-3/8" (3.4cm) wide, 1-5/8" (4.2cm) high from top of rail (extended), 5/8" high (1.5cm) (folded).