PDI 6.01mm 01 Precision Inner Barrel for Marui M&P9 (91mm)

PDI 6.01mm 01 Precision Inner Barrel for Marui M&P9 (91mm) 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 Tokyo Marui M&P9 Series Airsoft Gas Blow Back GBB Pistol