The LCT Marui A.E.G. Tune-Up Spring – SP190 (PK-100) is purpose-built for those seeking enhanced power in their Tokyo Marui-compatible AEGs. Manufactured by LCT, this upgrade spring is recommended for experienced users aiming for a higher power output in custom builds or replacements.
- Compatible with Marui AEG platforms
- High-tension SP190 rating
- Manufactured by LCT for reliability
Please note: Installation should be carried out by qualified technicians due to the high tension of this spring. Always ensure compliance with UK airsoft power limits.











