Nightstick TAC-460XL-K01 Xtreme Lumens Tactical Long Gun Light Kit Durability and safety tested for the toughest situations Designed in the USA with quality materials Used in tactical, outdoor, Recreation levels 800 Lumens LED flashlight w/205 meter beam distance Remote pressure switch with momentary on/off control Includes everything needed to mount to any long gun Mounts to any mil spec Picatinny or Weaver rail Powered by two CR-123 batteries (included)