GMG-Global Military Gear MAKO 130+ Lumens L.E.D Flashlight LED Tactical - Light Kit for Mossberg 500/590/835/Maverick 88 12/20 Gauge Shotgun Light Kit Includes: GM-SGC Barrel/Mag Tube Light Clamp 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.