‧Aluminum and Steel construction‧Full CNC machining‧Manganese phosphate surface treatment on steel parts‧Hard Anodizing on aluminum parts‧Replace original part‧Comes with aluminum outer barrel, military standard 20mm rail handguard and handgurda nut‧Comes with steel barrel nut, gs block, gas tube, threaded muzzle kit and flash hider adapter‧Suitable for SYSTEMA M4 PTW RifleMaterial: Aluminum, SteelManufacturer: ZParts
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