DO999 got the kit from GCTAC to do this build. The GCTAC Radian Model ONE MWS Kit, based on the high-end Radian Model 1 rifle, features a 14.5-inch length, ambidextrous controls, and top-tier components like a VERTEX trigger, Talon selector, and RAPTOR charging handle. Available in black, FDE, or gray, it promises a premium airsoft experience. Note that assembly and adjustments may be required.