Titan Upgrade Spring

One of the best upgrade springs for your water gel blaster.

- 1.1 mm springs gives slightly higher than stock performance.
- 1.2 mm springs brings the perfect balance between power (fps) and accuracy.

- 1.3 mm springs gives best fps with the use of heavy piston head.

- 1.4 mm springs is for highly tuned gearboxes. Not really recommended.