The ZCI Version 3 Gearbox Spring Set is a cost-effective maintenance solution for airsoft players running Version 3 gearboxes. Springs wear and weaken over time, affecting trigger response, selector plate engagement, and gearbox reliability. This complete replacement set restores factory performance or supports upgrade builds.
Key Features
- Complete spring set – five essential components in one pack
- Anti-reversal latch spring – prevents piston backslide
- Tappet plate spring – ensures precise air nozzle timing
- Trigger spring – maintains consistent trigger pull weight
- Trigger mech spring – supports smooth selector function
- Selector plate spring – reliable full-auto/semi-auto engagement
- Version 3 compatible – fits standard V3 gearbox models
- Affordable – budget-friendly upgrade or replacement option
Real-World Use Cases
Ideal for skirmishers and milsim players whose gearboxes show signs of wear – sluggish selector response, reduced trigger crispness, or unreliable fire mode engagement. Also valuable for builders upgrading gearbox internals, where new springs improve overall reliability and consistency. A sensible spare to keep in your toolkit.
Technical Specifications
- Gearbox version: Version 3
- Set contents: 5 springs (anti-reversal latch, tappet plate, trigger, trigger mech, selector plate)
- Manufacturer: ZCI
- SKU: A-13
Compatibility & Upgrades
These springs are engineered for standard Version 3 gearboxes found in most full-power AEGs and carbines. Fit check your gearbox before purchase – Version 2 and Version 8 boxes require different spring sets. Compatible with all major gearbox brands and aftermarket upgrade kits that use V3 shells.
UK Legal & Site Notes
Spring sets are legal spares with no age restrictions. Always check your site’s chrono limits and upgrade policy – lighter springs may lower FPS, heavier springs will increase it. Order these in advance of your build or maintenance schedule.
Stock ZCI replacement springs at Airsoftdirect today and keep your gearbox performing at its best.






