Our take: JBU's inner barrels are made from high tensile, aircraft grade aluminum, using precision CNC machining. These JBU 6.01mm tight bore inner barrels provide maximum accuracy and increased FPS in any AEG. Because these barrels are precision crafted, only high quality, precision grade BBs should be used with this inner barrel. The JBU Tight Bore 6.01mm barrel should fit in most AEGs, and should be compatible with most hop up systems.
Our take: JBU's inner barrels are made from high tensile, aircraft grade aluminum, using precision CNC machining. These JBU 6.01mm tight bore inner barrels provide maximum accuracy and increased FPS in any AEG. Because these barrels are precision crafted, only high quality, precision grade BBs should be used with this inner barrel. The JBU Tight Bore 6.01mm barrel should fit in most AEGs, and should be compatible with most hop up systems. Professional installation is recommended for anyone unfamiliar with installing a new inner barrel. The super slick performance finish strengthens and protects the barrel, while reducing friction (conserves velocity back spin). This 550mm inner barrel extension is for M16, AUG, and Sig 550 metal gearbox AEGs.Precision manufactured to ensure durability and high quality.Note: span style= font-size: 13px; color:
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