Our custom GBB 6.03mm inner barrel created with a high quality stainless steel.
Available in the following sizes (if they are not on the drop-down that size is out of stock)
93mm
113mm
129mm
250mm
277mm
303mm
363mm
450mm
We contracted out the production to a CNC factory that specialises in high-end metalwork, this is very apparent from looking at the outside of the barrel. For the inner surface they suggested a finely uniformed surface that distributes the air and helps to create a cushion surrounding the BB on all sides helping to control the spin.
- Enlarged hop window (7mm long and 5.3mm wide)
- End stabalising groove
- A deeper crown
- 30 day no-quibble returns policy