Maple Leaf Crazy Jet 6.04mm inner barrel (84mm) suitable for WE/Marui pistols such as the Glock19/23/PPQ/M84 etc.
An interesting concept which uses a gap towards the end of the inner barrel which allows some gas to pass the BB and then accelerate in front creating a cushion of moving gas for the BB to travel within.
In theory, this should then create an improvement in range and accuracy.
Please note that the finish on these barrels is now silver.
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