Ultimate Arms Gear 130+ Lumens L.E.D Flashlight LED Tactical - Light Kit For Remington 870/1187/11-87 12/20 Gauge Shotgun Light Kit Includes: Barrel/Mag Tube Light Clamp Mount, Push Button Tail Cap & Battery - Features Front Serrated Self Defense Bezel High Quality 130+ Lumens L.E.D. - Light Emitting Diode. Aircraft Grade Aluminum T6 Housing - O-Ring Sealed, Waterproof & Weatherproof! Front Serrated Bezel For Added Self Defense Feature. High Quality Push Button Tail Cap. 2-CR123A Batteries Included. Shotgun Barrel Flashlight Mount-Polymer construction, Standard steel sling swivel, Mounts lights to shotguns, Clamp to barrel and light, Can be used as sling swivel, Clamp to barrel and mag tube. Installs In Seconds, Simply Clamp Mount Onto Barrel or Mag Tube and Attach Tac-Light. No Gunsmithing Needed.