ZCI 430mm Stainless Steel 6.02mm Inner Barrel

The ZCI 430mm Stainless Steel 6.02mm Inner Barrel is an essential upgrade for airsoft skirmishers and precision shooters seeking measurable improvements in accuracy and consistency. Manufactured from quality stainless steel with precision 6.02mm bore tolerances, this tight-bore design reduces air wastage and enhances projectile stability downrange.

Key Features

• Stainless steel construction – corrosion-resistant and durable for repeated use
• 6.02mm precision tight-bore – tighter tolerances reduce air leakage and improve shot consistency
• 430mm length – suits mid-length AEG platforms and M4/M16-pattern builds
• Velocity boost – optimised bore reduces air loss, helping achieve higher FPS and consistency
• Enhanced grouping – tighter tolerances deliver visibly tighter shot groups at range
• Marui-compatible – fits all standard Marui AEG gearboxes and compatible clones

Real-World Use Cases

This barrel excels in competitive skirmish environments where accuracy at medium range matters, and in indoor CQB sites where consistency is rewarded. Target shooters and milsim players will appreciate the grouping improvements when paired with a quality hop-up unit and appropriate weight BBs. It’s an ideal first upgrade for stock AEG owners wanting noticeable performance gains without a full rebuild.

Technical Specifications

• Bore diameter: 6.02mm
• Length: 430mm
• Material: Stainless steel
• Compatibility: Marui-compatible AEG gearboxes

Compatibility & Upgrades

This barrel is designed for Marui-compatible AEGs and standard V2 gearbox platforms. For best results, pair with a quality hop-up unit (such as ZCI or Madbull), appropriate weight BBs (0.28–0.32g for most setups), and ensure your motor provides sufficient torque for the slightly increased air resistance of tight-bore geometry. Muzzle devices and outer barrel sleeves remain fully compatible.

UK Legal & Site Notes

Inner barrels are unrestricted in the UK and legal to own and modify. However, always check your local skirmish site’s FPS limits before fitting. A barrel upgrade may increase velocity slightly; chronograph your replica post-install to confirm compliance with your site’s rules (typically 330–500 FPS on 0.20g BBs for AEGs).

Upgrade your AEG’s accuracy and consistency with ZCI’s proven stainless steel tight-bore barrel. Order now from Airsoftdirect and experience noticeably tighter grouping and reliable performance.