Officially licensed through Evike Manufacturing Group, OEM by KRYTACAluminum alloy receiver CNC machined aluminum alloy REC7 hand guardKRISS Low Profile flip up sightsAnti-corrosion gearbox coating; Integrated MOSFET with Heat-Sink; 8mm ball bearing bushing; T-plug with Tamiya AdaptorEasy spring access system with anchored spring guideAmbidextrous fire selector and realistic locking bolt and bolt releaseAdjustable rotary hop-unlicensed KRISS® motor gripKRYTAC 6 position adjustable stock with Extended Butt-pad