Raven (PDI) 01 Inner Barrel (Tokyo Marui SG-1 / 469mm)

Raven (PDI) 01 Inner Barrel (Tokyo Marui SG-1 / 469mm) Internal diameter 6.01mm built for precision shooting Genuine Products by PDI. Made in Japan. (STKM13C) Steel Tightbore Upgrade Barrel Suitable for Tokyo Marui SG-1 Series Airsoft Electric Gun AEG Rifle Advance Technology forming by Cold Forging on Stainless Steel result in tolerance no more than