NcSTAR 500 Lumen LED Flashlight with Rail Mount. Mounts to standard rail systems. Includes advanced strobe function.  This is a universal flashlight weaponmount system for use on airsoft guns.  Mounts on all standard rails, side rails, etc.  Newer version is now 500 lumens for awesome illumination.  Easy to use and takes standard CR123 lithium batteries.  NCStar code VATFLBMM2