ZCI CNC 13:1 High Speed Gearset – AEG Upgrade

The ZCI CNC 13:1 high speed gearset is a precision upgrade component for skirmishers seeking faster trigger response and increased rate of fire from their AEG. Built to exacting standards using CNC machining, this gearset replaces stock gears and unlocks meaningful performance gains when paired with the right battery and spring combination.

Key Features

• 13:1 drive ratio – increases rate of fire for aggressive loadouts
• CNC-machined construction – tight tolerances and durability
• Version 2 & 3 gearbox compatible – works with most common AEG platforms
• Supports springs up to M130 – ideal for high-torque setups
• Requires higher voltage battery – best paired with 11.1V LiPo or higher

Real-World Use Cases

This gearset suits players running high-voltage builds who prioritise rate of fire and trigger response over range. Milsim operators utilising full-auto fire will benefit from the faster cycling, whilst skirmishers upgrading older or stock AEGs can achieve modern performance standards. The 13:1 ratio balances speed with sufficient torque for reliable spring engagement.

Technical Specifications

• Drive ratio: 13:1
• Gearbox version: 2 & 3 compatible
• Maximum spring recommendation: M130
• Construction: CNC-machined
• Recommended battery voltage: 11.1V LiPo or higher

Compatibility & Upgrades

The ZCI 13:1 gearset fits standard version 2 and version 3 gearboxes found in M16, M4, G36, and AK-pattern AEGs. When upgrading, ensure your motor can deliver sufficient torque for reliable engagement, and select a higher voltage battery (11.1V LiPo minimum) to avoid mechanical strain. Pair with a quality AOE correction and shimming service for optimal longevity.

UK Legal & Site Notes

As an internal upgrade component, this gearset is legal to own and use in the UK airsoft community. Site chronograph limits remain unchanged by internal modifications, so check your venue’s FPS cap before deployment.

Invest in the ZCI CNC 13:1 gearset to unlock faster, more reliable performance from your AEG. Add to basket now and upgrade your skirmish-ready firepower.