Union Fire Airsoft High Speed AEG Gear Set 13:1

Union Fire High Speed Gear Set 13:1

The Union Fire High Speed Gear Set 13:1 from Bullseye Country Sport is a performance-driven gearbox upgrade designed for airsoft AEG builds using Version 2 and Version 3 mechboxes. Manufactured from CNC-machined steel, these gears are built to provide faster cycling speeds, improved trigger response and dependable durability for upgraded rifle setups.

Featuring an aggressive 13:1 gear ratio, this gearset is designed for players wanting a noticeably snappier and more responsive shooting experience compared to standard factory gears. Lower ratio gearsets like 13:1 reduce the amount of motor rotation required per cycle, helping improve trigger response and increasing rate of fire when paired with suitable supporting components.

The CNC steel construction helps provide excellent strength and wear resistance under repeated use, while the precision-machined finish is designed to support smoother gear meshing and more efficient gearbox operation. As with any high-performance gear build, correct shimming, motor choice and compression setup remain important for reliability and long-term performance.

Compatible with standard Version 2 and Version 3 gearbox platforms, these gears are suitable for a wide range of popular AEG builds including M4 rifles, AK platforms, MP5 variants, G36 systems and other common gearbox setups where improved responsiveness and faster cycling performance are desired.

The 13:1 ratio has become one of the most popular upgrade choices amongst experienced AEG builders because it offers a substantial improvement in trigger response and firing feel without reaching the extreme stress levels associated with DSG or ultra-high-speed competition builds.

At Bullseye Country Sport, we reckon gearbox upgrades are basically airsoft’s version of “while I’m in here…” — one part turns into five very quickly.

Why It’s Great

Fast 13:1 high-speed gear ratio

CNC-machined steel construction

Improved trigger response potential

Faster cycling speed than standard gears

Precision-machined for smoother operation

Compatible with V2 and V3 gearboxes

Ideal for upgraded AEG builds

Quick Specs

Ratio: 13:1

Material: CNC Steel

Compatibility: Version 2 & Version 3 Gearboxes

Type: High Speed Gear Set

Use: Airsoft AEG Gearbox Upgrade

Brand: Union Fire

Same Day Dispatch on All Orders Placed Before 3pm Monday – Friday

For Airsoft Use Only, cannot be Adapted or Modified for any other purpose

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