Impact Weapons Components Thorntail Key Mod Mount Fits Sure Fire's M300's/M600's Mini-Scout/Mounted Light 1913 THORNTAIL can also be cantilevered past the front of the forend (based on forend design). Rugged, durable design CNC machined from a single piece of 6061-T6 Billet Aluminum IWC designed our new THORNTAILM3M61913 Offset Adaptive Light Mountwith AMBI mounting capability, so you can place the tail cap of the weaponlight light in up to 6 separate munting positions on a forend with 3 KeyMod attaching locations.