PDI 01 6.01mm Precision Inner Barrel for Western Arms M9A1 Series GBB AEG Rifle External Parts (3) Insert battery into the

(3) Insert battery into the case

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PDI 01 6.01mm Precision Inner Barrel for Western Arms M9A1 Series GBB AEG Rifle External Parts (3) Insert battery into thePDI barrels are cold hammer forged from stainless steel, which is the same process how real rifle barrels are produced. They have a superior tolerance and roundness of the inner surface compared to anything else on the market. PDI 01 6. 01mm Precision Inner Barrel for Western Arms M9A1 Series GBB Stainless steel Construction Internal diameter 6. 01mm built for precision shooting 8mm Outer Diameter Advance Technology forming by Cold Forging on