Description
Madbull M120 Upgrade Up Spring
Features:
- Consistent >100000 shotsl
- Non-liner design (calculated)
- Color coating to reduce effects from environment
- Design & Made by experienced engineers.
- Premium quality German piano wire
Specifications:
- Model: MB SP120
- Manufactured by: Madbull Airsoft
**We recommend upgrading to metal bushing and spring guide with bearing with this spring.