Gear ratio guide
How to Choose an Airsoft Gear Ratio
Compare common ratios and understand which complete-build factors matter.
Compare ratios
Precision airsoft drivetrain components
Precision CNC Airsoft Gear Sets
Built for dependable V2 and V3 gearbox upgrades, with clearly labeled gear ratios and practical technical guidance.
- CNC precisionConsistent gear geometry
- Multiple ratiosSpeed, torque, and DSG options
- V2 / V3 readyClear compatibility guidance
Core category
Shop Airsoft Gear Sets
Choose from 12:1, 13:1, 16:1, 18:1, SR25, and 9:1 DSG configurations for carefully matched AEG builds.
Choose the right setup
Airsoft Gear Ratio Guide
Use this quick comparison as a starting point. Motor, spring, battery, gearbox shell, and build quality also affect the final result.
| Gear set / platform | Common use | Build guidance |
|---|---|---|
| 12:1 | High-speed response | For carefully matched high-speed builds and experienced installation. |
| 13:1 | Response-oriented / high-speed setup | Supports quicker cycling when the motor, spring, battery, piston, timing, and installation are correctly matched. |
| 16:1 | All-round upgrade | A moderate ratio for balanced torque and cycle speed. |
| 18:1 | Standard / general-purpose setup | A conventional ratio suited to dependable general-purpose setups. |
| SR25 | Extended gearbox | Confirm SR25 gearbox and piston compatibility before ordering. |
| 9:1 DSG | Specialist DSG build | Requires expert parts matching, tuning, and installation. |
Compatibility depends on the complete build. Confirm gearbox version, sector gear type, motor, spring, and installation requirements before ordering.
Built around measurable details
Designed for Consistent Gearbox Performance
Show real material, hardness, dimensional, compatibility, and quality-control facts so technicians can choose with confidence.
CNC
Precision manufacturing
HRC42–50
Published gear hardness
V2 / V3
Common gearbox versions
6 ratios
Speed, torque, and DSG options
Supporting category
Airsoft Gearbox Bushings
Complete the drivetrain with the supporting bushing category for stable gear alignment and gearbox service.
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7mm/8mm CNC 420F Steel Bushings for Airsoft Gearbox SHS
From $8.17$11.51 -
Technical resources
Build With Better Information
Focused buying guidance connects customers directly to the right ratio, compatibility checks, and supporting parts.
Compatibility
V2 and V3 Gearbox Compatibility
Check gearbox version and related component requirements before ordering.
Shop Gear SetsSupporting parts
Choosing Airsoft Gearbox Bushings
Review the supporting category for stable gear alignment and gearbox service.
Shop BushingsCustomer proof
Built and Tested by Airsoft Players
Recent customer feedback from real gearbox builds.
per ora nn li ho ancora montati ma promettono molto bene
excelente calidad muy buen precio llegó sin problemas a chile terrible wenos ctmmmm
i can tell that this is high quality, ill be using this for high fps builds. E&C 204 HK417 G28
Anthony Bogisich
19 Teeth Sector Airsoft Gear Set for SR25 Series Gearbox
Dual Sector gears are actually really good quality and feel heavier than expected; planning to use this on my ssg1
My favourite gears for my builds🤘🏻
My second set i already bought, in my opinion, they are the best gears on aliexpress. Can only recommend
Excellent quality, steel with oil groove. The sizes are also good.
Looks very nice & precision
everything ok, can't wait to try them.
Superb ! Very well packaged, and the product is magnificent. Great quality, was very excited for this product to arrive. Will give further review once i install them into my cyma mp5.
Darnell Rutherford
Standard V2 V3 Gearbox Set AEG Airsoft 16:1 SHS Gear CNC Steel Parts
Seem to be a good product. Have yet to test. Metal and dimensions are correct for 8mm bushings.
Paris Champlin
7mm/8mm CNC 420F Steel Bushings for Airsoft Gearbox SHS
Superior Quality!
Standard V2 V3 Gearbox Set AEG Airsoft 16:1 SHS Gear CNC Steel Parts
Everything is good as usual :)
I received the product and was surprised before use.
For brands, distributors, and technicians
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Contact JVAN about volume requirements, available specifications, packaging, and supply questions.
