da Vinci GUREN 2 6.03mm Carbon Steel Inner Barrel for AEG (469mm) Net-Weight-(g)_38 Suitrable for Action Army AAP01

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da Vinci GUREN 2 6.03mm Carbon Steel Inner Barrel for AEG (469mm) Net-Weight-(g)_38 Suitrable for Action Army AAP01Guren is made of precise carbon steel & process the HV500 Coat for the surface. This plating reinforced a hardness of the surface so achieve around HV500. Its better than stainless steel (from HV200 to 400) Itll be kept clean & beauty surface for long time. Of course, its good for anti rust. Guren 2 is the best design for AEG chamber & has a tapered muzzle end. The tapered muzzle makes better accuracy & FPS but become happen a lots metal chips. So be