ZCI Modular Outer Barrel Set – AEG & GBB Extensions

The ZCI Modular Outer Barrel Set is a practical upgrade and customisation solution for builders and upgrades enthusiasts. Its modular design lets you dial in the exact barrel length your setup demands, without committing to a single fixed profile.

Key Features

• Modular design – build your preferred barrel length with three interchangeable segments
• Dual compatibility – includes both GBB and AEG end caps for maximum platform reach
• Universal fitment – works across most common AEG and GBB platform receiver rails
• Zero-downtime customisation – swap extensions in minutes without permanent modifications
• Quality ZCI construction – precision-engineered components for reliable performance

Real-World Use Cases

Perfect for skirmishers building a CQB carbine or a longer-range designated marksman setup from the same platform. GBB players can dial in the ideal sight radius; AEG builders can optimise hop-up effectiveness and aesthetics. Upgrade enthusiasts appreciate the flexibility to experiment without waste.

Technical Specifications

• Manufacturer: ZCI
• Compatibility: Most AEG and GBB models
• Configuration: 1× GBB end cap, 1× AEG end cap, 3× extension segments
• Material: Precision-engineered metal construction

Compatibility & Upgrades

Works with standard 20mm rail systems and most receiver profiles. Check your platform’s barrel diameter before ordering. Pairs well with aftermarket hop-up units, inner barrels, and bucking upgrades.

UK Legal & Site Notes

As a cosmetic upgrade component, this set poses no legal restrictions. Your final replica configuration must remain below 350 fps (1.48 J with 0.20 g BBs) for UK skirmish sites. Always verify your local site rules before deployment.

Invest in ZCI quality barrel extensions and unlock endless build possibilities. Order the ZCI Modular Outer Barrel Set today and take full control of your replica’s ergonomics.