PDI 6.01 Precision 7" Inner Barrel for Marui Hi-Capa 5.1 GBB
Stainless Steel Tightbore Upgrade Barrel
For Tokyo Marui Hi-Capa 5.1 Series Airsoft Gas Blow Back GBB Pistol
Internal diameter 6.01mm built for precision shooting
For custom upgrade user, you can choose a longer barrel
Genuine Products by PDI
Advance Technology forming by Cold Forging on Stainless Steel result in tolerance no more than

NOTE: You can always choose a longer Barrel if you have a extended Outer barrel installed