The M P Delta Force RM M-LOK KeyMod 1xCR123 offers a runtime of 1hr. 10min on high and 3hrs 55min on low. It measures to a length of 4in, head diameter of 1.26in and weight of 3.9 oz. with batteries one, CR123 battery included . Features high, low, strobe, and momentary on functions and memory retention it remembers your last light setting. Includes a M-LOK mount with KeyMod adapter and remote on/off button with cord. Remote button includes hook loop mounting straps. Light features a Cree XPL-V6 LED and the flashlight is constructed from anodized aerospace aluminum. Provides a tail cap with momentary and on/off switch, crenelated head for self-defense, beam distance of 204m on high, 60m on low, and 500 lumens on high and 50 on low. M P Delta Force RM M-LOK KeyMod 1xCR123 1083420