PDI 01 6.01mm Precision Inner Barrel for Marui MP7A1 (182mm)

PDI 01 6.01mm Precision Inner Barrel for Marui MP7A1 (182mm) 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 MP7A1 Series Airsoft Gas Blow Back GBB Rifle High Tolerances of 0.002 mm accuracy When used with precision BB will increase firepower and accuracy of your MP7 by approx 5% - 10%