Description
RAIZEN GBBR Inner Barrel with Enhanced Versatility
The GBBR-EX model expands compatibility for GBBRs while retaining the same high-precision machining found throughout the existing RAIZEN series.
Based on the Tokyo Marui MWS inner barrel design, this dedicated model incorporates the shape and specifications of VFC GBBR OEM inner barrels.
An additional chamber-retaining groove has also been machined into the barrel with the use of aftermarket chambers for VFC GBBRs in mind.
This design provides greater versatility, with compatibility intended not only for OEM configurations but also for various commercially available VFC-compatible aftermarket chambers.
The muzzle end is equipped with an O-ring groove machined to the same dimensions as the OEM MWS inner barrel.
Features
- High-precision machining equivalent to the existing RAIZEN series
- Dedicated design based on the Tokyo Marui MWS inner barrel
- Incorporates specifications from VFC GBBR OEM inner barrels
- Additional retaining groove designed for VFC GBBR aftermarket chambers
- Groove position selected based on dimensions commonly used in commercially available chambers
- Muzzle end equipped with an O-ring groove matching MWS OEM dimensions
- Overall Length: 250 mm
Important Notice
Compatibility with aftermarket chambers from specific manufacturers or specific products is not guaranteed.
The chamber groove position has been designed based on dimensions commonly used among commercially available VFC-compatible chambers.









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