HELLBOYS Collection Lightweight Outer Barrel for KWA M4 GBB Rifle

- CNC machined aluminum construction
- Carbon fiber sections for weight reduction and strength
- Suitable for KWA M4 GBB Series

1. Extremely lightweight desgin
2. Roll-wrapping dry carbon fiber barrel sleeve
3. Machined 6061 Aluminium barrel
4. 304 stainless steel made gas block section
5. BSF light weight race barrel style
6. For KWA M4 GBB only