- Design for Blowback Housing O-ring type Piston head
- For TM spec hi-capa
- As always, upgrading GBB require necessary skill & technique, consult expertise if needed
Major Color : Green
Built Material : FKM
- Design for Blowback Housing O-ring type Piston head
- For TM spec hi-capa
- As always, upgrading GBB require necessary skill & technique, consult expertise if needed
Major Color : Green
Built Material : FKM