The ZCI 6.02mm Stainless Steel Inner Barrel is a precision airsoft rifle upgrade designed for players serious about accuracy and consistency. At 650mm length, it’s engineered to optimise BB flight, tighten groupings, and unlock the full potential of your AEG’s gearbox and hop-up system.
Key Features
- Stainless steel construction – corrosion-resistant and durable for long-term reliability
- 6.02mm precision tightbore – improves grouping and shot consistency versus stock barrels
- 650mm length – compatible with full-length AEG platforms
- Marui-pattern compatibility – fits all Marui-compatible AEGs and most standard gearboxes
- Performance boost – enhances BB velocity stability and trajectory accuracy
Real-World Use Cases
This barrel excels in skirmish and milsim environments where shot placement matters. Competitive target shooters benefit from tighter, more predictable groupings at 20–40m. It pairs well with quality hop-up units and matched BB weights to achieve professional-grade accuracy. Upgrade your AEG’s internals alongside this barrel for best results.
Technical Specifications
- Inner diameter: 6.02mm
- Length: 650mm
- Material: Stainless steel
- Compatibility: Marui-pattern AEGs (Tokyo Marui, Cyma, JG, etc.)
Compatibility & Upgrades
The ZCI 6.02mm barrel works with any standard AEG gearbox and hop-up unit using Marui-compatible receivers. Pair it with a quality hop-up rubber (bucking), precision BB weight (0.20g–0.28g), and clean internals for optimal performance. Slightly tighter than factory barrels, so ensure your cleaning rod and syringe fit comfortably before installation.
UK Legal & Site Notes
Inner barrel upgrades are non-restricted components and legal to own and modify in the UK. However, always check your local airsoft site’s chrono limits (typically 350–500 FPS for rifles) to ensure your setup remains within competition rules after installation.
Upgrade your accuracy today. Order the ZCI 6.02mm Stainless Steel Inner Barrel from Airsoftdirect UK with next-day delivery on qualifying orders.





