The Nightstick Tactical Long Gun Light Kit provides everything necessary to add a high-power tactical light to any long gun that has a Picatinny or Weaver rail. At the heart of the kit is the Nightstick TAC-460XL Xtreme Lumens metal tactical light rated at 800 lumens. Combined with a high-efficiency deep parabolic reflector, the beam on the TAC-460XL is distance rated at 205 meters perfect for long-distance target acquisitions. With a wide secondary halo of light, the TAC-460XL is equally effective in CQB situations. When paired with the included Remote Pressure Switch, the TAC-460XL becomes the perfect addition to the weapon. With its momentary on/off design, the Remote Pressure Switch assures the operator of complete control over the full power of the light. The light is made from aircraft-grade 6061-T6 aluminum and has a Type III hard-anodized finish. The kit includes the TAC-460XL Xtreme Lumens tactical light, the standard tail switch with momentary or constant-on functionality, the Remote Pressure Switch, the Quad Lock Mount, the self-adhesive Velcro strip, an alcohol pad for surface prep, and 2 CR123 Lithium Batteries. (Not compatible with rechargeable CR123-style batteries.)