PDI 01 6.01mm Precision Inner Barrel for PDI-Patriot1/ Marui MP5A4/ AK Beta AK Beta Spetsnaz (229mm)

PDI 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 PDI-Patriot1/ Marui MP5A4/ AK Beta AK Beta Spetsnaz (229mm) Internal diameter 6.01mm built for precision shooting Genuine Products by PDI Stainless Steel Tightbore Upgrade Barrel Advance Technology forming by Cold Forging on Stainless Steel result in tolerance no more than Suitable For PDI-Patriot1/ Tokyo Marui MP5 Series Airsoft Rifle