- Enhanced gas flow
- High Strength CNC Steel Construction
- 2 options of valve spring in each pack
- Whiteish Blue spring: Stock Joule reading
- BLACK spring: 10% high Joule increase
|Compatibility||Tokyo Marui Hi-Capa GBB and any other compatible brands|
DISCLAIMER: Please use discretion when installing custom parts as fit and compatibility may vary. Some modification may be required. Professional installation recommended.
Increasing in FPS can be achieved but may require additional parts and advanced skill. Improper installation/fitting will shorten the life of the product.