♦ FOR VIPER M4
♦ 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-STD
♦ Aluminum handguard: aluminum extrusion, full CNC machining, coated with hard anodizing in MIL-STD
♦ Aluminum handguard and steel threaded muzzle kit exactly copy genuine parts
♦ Suitable for Mk12 suppressor (Z-KIT-007)