ZCI Stainless Steel 6.02mm Inner Barrel 400mm

The ZCI 6.02mm Stainless Steel Inner Barrel (400mm) is a precision-engineered upgrade component for serious airsoft skirmishers and target shooters. Built from high-grade stainless steel, this tight-bore barrel optimises air efficiency and BB trajectory for noticeably tighter grouping and superior accuracy downrange.

Key Features

• 6.02mm precision bore – tighter than standard barrels for improved BB guidance
• Stainless steel construction – durable, corrosion-resistant upgrade material
• 400mm length – suitable for mid-length AEG platforms
• Marui-compatible design – fits standard airsoft AEG gearboxes
• Enhanced accuracy and grouping – measurable improvement in shot consistency
• Increased FPS potential – optimised air seal for higher velocity

Real-World Use Cases

This barrel excels in competitive target shooting and precision-focused milsim loadouts. Upgraders swapping out stock barrels will notice tighter grouping at 30m+ ranges and improved consistency in wind conditions. Perfect for players running DMR or designated marksman builds who demand accuracy over rate of fire.

Technical Specifications

• Inner Diameter: 6.02mm
• Length: 400mm
• Material: Stainless steel
• Compatibility: Marui-compatible AEGs

Compatibility & Upgrades

The 400mm length suits mid-length carbine and rifle platforms using standard Marui or compatible gearbox designs. Pair with a quality hop-up unit and matching nub for optimal performance. Compatible with most M4, M16, and AR-platform AEGs; measure your current barrel length to confirm fit if upgrading from a different spec.

UK Legal & Site Notes

Inner barrels are legal components in the UK and pose no restrictions. Always check your local airsoft site’s regulations on FPS limits before upgrading – a tighter bore may increase velocity if your hop-up efficiency improves. Chronograph after installation to stay within site limits (typically 328 FPS / 1.41 J on 0.20g BBs).

Invest in precision. Upgrade to ZCI’s 6.02mm stainless steel barrel and feel the difference in your grouping and shot placement today.