Description
- Made with high quality steel piano wire
- Velocity: 280-340 FPS (results may vary)
- Variable tension reduces mechanical stress in gearbox
- Maximum durability and reliability
Modify M90 Upgrade Irregular Pitch Spring for AEG Airsoft Guns
The Modify M90 Upgrade Spring is designed to be used in almost any full metal airsoft AEG gearbox. This spring uses steel piano wire for maximum durability and reliability. The irregular pitch design reduces overall stress inside the gearbox.
Features:
- Made with high quality steel piano wire
- Velocity: 280-340 FPS (results may vary)
- Variable tension reduces mechanical stress in gearbox
- Maximum durability and reliability
- Compatible with any AEG airsoft gun gearbox