Command Arms AR15/M16 Triple Rail Mounting System: * Available as a single 3" Picatinny rail (TRM), two 2.5", 45 degree Picatinny rails (TRM2), or combined to provide a triple rail mount (TRM3) * Use all 3 rails on lower handguards for grip with easy thumb access to light and laser on side rails or use 3" rail on bottom and 2.5" rail on top * Allows easy tactical light operation while using a vertical grip and light mount * Rails can be used independently of each other * 45 degree rails will not interfere with iron sights * Mounts on the upper and lower vent holes of most existing standard handguards * Constructed of high density polymer