ZCI CNC Airsoft Gearset 18:1 – High-Performance Steel

The ZCI CNC Airsoft Gearset 18:1 is a precision upgrade component engineered for skirmishers and milsim players seeking reliable, consistent gearbox performance. Built from high-grade steel via CNC machining, this gear set delivers the durability and accuracy expected from quality internal upgrades.

Key Features

• 18:1 drive ratio – balanced rate of fire and torque delivery
• CNC-machined steel construction – superior precision and longevity
• Spring compatibility: M110–M150 rated – flexible upgrade path
• Ver. 2 & Ver. 3 gearbox compatible – wide platform support
• Tight tolerances – minimal backlash and smooth engagement

Real-World Use Cases

Ideal for players upgrading a stock AEG to improve trigger response and reliability. The 18:1 ratio suits CQB and mid-range skirmish gameplay, delivering snappier trigger feel than slower ratios whilst maintaining predictable performance. A popular choice for building DMR-style rifles or refreshing worn gearboxes.

Technical Specifications

• Drive Ratio: 18:1
• Material: Steel
• Manufacturing: CNC Machined
• Spring Rating: M110–M150
• Gearbox Compatibility: Version 2, Version 3

Compatibility & Upgrades

This gearset is compatible with standard Version 2 and Version 3 AEG gearboxes – the most common platforms in commercial AEGs. Confirm your gearbox version before purchase; Ver. 2 gearboxes are typically found in M16A4 and M4 variants, whilst Ver. 3 units are common in AK-platform and some modern M4 models. Pair with an appropriate M110–M150 spring and quality shimming for optimal performance.

UK Legal & Site Notes

Gearsets are internal components and do not affect FPS classification. However, your completed rifle must comply with site chronograph limits before deployment. Always test on site and carry documentation if required. Internal upgrades should be performed by competent hands – poor installation can damage the gearbox.

Upgrade your AEG’s performance and reliability with the ZCI CNC Gearset 18:1. Order now from Airsoftdirect UK for fast, secure delivery.