THORNTAIL KeyMod M3M61913 Offset Adaptive Light Mount is designed to accept Surefire M300/M600 Scout, Streamlight Rail Mount 1/2 & HL-X Weaponlights and Backbone Replacement M300/M600 Scout Bodies and other Replacement M300/M600 Scout Bodies and any 1913 rail mounted weapon lights (INFORCE APL, WML's, Surefire X300's, X400's, Streamlight TLR's) to a KEYMOD Compatible Forend, eliminating the need for separate bulky 1913 rail sections and a separate light mount.IWC designed our new THORNTAIL M3M61913 Offset Adaptive Light Mount with 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.Rugged, durable design CNC machined from a single piece of 6061-T6 Billet Aluminum.THORNTAIL can also be cantilevered past the front of the forend (based on forend design).Designed and manufactured by Americans working at IMPACT WEAPONS COMPONENTS for HALEY STRATEGIC PARTNERS.