Arcturus RS Steel QPQ Precision 6.02mm / 380mm Airsoft AEG Tightbore Inner Barrel

By narrowing the bore to a tight 6.02mm diameter, this barrel stops air from leaking past the BB. Locking that air pressure directly behind the projectile gives you an instant bump in muzzle velocity and a much flatter trajectory when taking long-range shots.

The biggest benefit here is the rugged build quality. Machined from heavy-duty steel, the barrel is incredibly rigid, which eliminates accuracy-killing vibrations when you are firing quickly in semi or full-auto. Arcturus also treated the steel with a specialized QPQ (Quench-Polish-Quench) surface finish. This leaves the inside bore with a smooth, mirror-like finish that cuts down on friction and prevents dirt or BB residue from building up over time, ensuring your feeding stays flawless.

Measuring 380mm in length, this precision piece is the ideal size for standard carbines and assault rifles, including traditional M4/M16 setups, longer AK variants, or mid-length DMRs. It uses standard AEG cuts, so it will drop right into most aftermarket hop-up chambers and buckings without any fitment headaches. If you want to stop missing distant targets and get the most out of your gearbox, swapping your factory barrel for this Arcturus upgrade is a smart move.

Features:

• High-grade steel construction
• Premium QPQ surface treatment
• 380mm overall length
• Tightbore 6.02mm inner diameter
• Standard AEG hop-up compatibility