BOW MASTER 130% Recoil Spring Set for Marui AKM GBBR
- 130% recoil spring for sharp recoil
- Evolved design for smooth operation and easy installation
- Suitable for Tokyo Marui AKM GBBR
Makes the rate of fire higher and provides more kick, couldn't be happier
I’m satisfied perfectly!!
the spring itself is too strong, it decreases gas efficiency and the bolt feel like it's going to break everytime I release the bolt
very fast operation