♦ For TOKYO MARUI MWS ♦ Include Steel Outer Barrel, Steel Barrel Nut, Aluminum Handguard, Aluminum Handguard Nut, Steel Gas Block, Stainless Gas Tube, Steel Threaded Muzzle Kit and Steel Flash Hider Adapter ♦ Steel Flash Hider Adapter-M14-LH ( Z-KIT-002 ) ♦ All steel parts : Full CNC machining + Manganese phosphate surface treatment ♦ All Aluminum parts : Full CNC machining, coated with Hard Anodizing in MIL standard ♦ Aluminum Handguard : Aluminum Extrusion + Full CNC Machining, coated with Hard Anodizing in MIL standard ♦ Aluminum Handguard & Steel Threaded Muzzle Kit exactly copy genuine parts ♦ Suitable for Mk12 Suppressor ( Z-KIT-007 )