ZCI Stainless Steel 6.02mm Inner Barrel 247mm

Upgrading your airsoft AEG’s inner barrel is one of the most effective ways to improve accuracy and consistency downrange. The ZCI Stainless Steel 6.02mm Inner Barrel is a straightforward, reliable choice for players looking to squeeze better performance out of their Marui-compatible gearbox.

Key Features

• Precision 6.02mm tightbore design – reduces air-to-pellet gap for tighter grouping
• Stainless steel construction – corrosion-resistant and durable under field conditions
• 247mm length – compatible with standard and compact AEG platforms
• Velocity boost – increased FPS and more consistent energy delivery
• Marui-compatible – fits all standard Tokyo Marui AEG gearboxes
• Cost-effective upgrade – delivers noticeable accuracy gains without breaking the bank

Real-World Use Cases

This barrel suits skirmishers and target shooters alike. If you’re running a mid-range AEG and finding your rounds spreading at distance, a tightbore barrel upgrade is often the first step. The 247mm length works well in M4 carbines, M16 variants, and other compact-to-medium platforms. Pair it with a quality hop-up unit and bucking for genuinely noticeable improvements in grouping consistency.

Technical Specifications

• Inner diameter: 6.02mm (tightbore precision)
• Length: 247mm
• Material: Stainless steel
• Compatibility: Marui-compatible AEGs
• SKU: J-03

Compatibility & Upgrades

This barrel is designed for Tokyo Marui-compatible gearboxes – the industry standard. To maximise the benefits of a tightbore barrel, consider pairing it with a reinforced hop-up chamber, a quality bucking (rubber), and a durable nozzle. A properly shimmed gearbox and precision piston will also ensure you get consistent energy transfer and minimal air leakage.

UK Legal & Site Notes

Inner barrels are upgrade components and carry no legal restriction in the UK. Most airsoft sites and skirmish events welcome barrel upgrades – they’re seen as legitimate performance tuning. Always check your local site’s chrono limits and FPS cap before field testing.

Ready to improve your grouping? The ZCI 6.02mm barrel is a solid, affordable precision upgrade that delivers real results. Order yours from Airsoftdirect today.