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Maple Leaf Crazy Jet 6.02mm Barrel w/ Hopup Chamber Set for Marui Hi Capa Series GBB Pistols (Model: 123mm / 60 Degree)

ID: 13080 (BRL-ML-CH21H6CJ123)
Maple Leaf Crazy Jet 6.02mm Barrel w/ Hopup Chamber Set for Marui Hi Capa Series GBB Pistols (Model: 123mm / 60 Degree)
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Maple Leaf (AST)



  • Unique "Crazy Jet" inner barrel creates an air cushion around the BB as it exits the barrel to reduce air resistance for improved performance
  • High quality brass and aluminum construction
  • Improved steel pressure plate
  • High quality metal hop-up adjustment dial
  • Complete drop-in barrel and hopup unit

Manufacturer: Maple Leaf


Material: Brass, Aluminum, Steel
Barrel Length: 123mm
Inner Diameter: 6.02mm (+/- .01mm)
Bucking: Hop up Rubber 60 Degree
Compatibility: For Tokyo Marui and Other Marui-Spec Airsoft GBB Hi Capa Pistols

About Maple Leaf (AST)

Maple Leaf manufactures high quality upgrade parts and Airsoft accessories.

3 Customer Reviews

(Write a review)

by caleb s. on 06/07/2023
This is an amazing barrel but for the EMG STI / TTI Licensed JW3 2011 it has some issue(that can be solved). First off the barrel does fit and fully function in the 2011, however, I have noticed that the 2011 itself has manufacturing issues where the tolerances are too tight resulting in slide lock. I don't fully understand how the barrel jammed my gun up but it somehow put just enough pressure on the outer barrel when shooting to cause mine to get slide locked after every shot, to fix this I had to mark up my outer barrel with sharpie and file down where the sharpie came off(sucks but this happens anyway over time).
The only real issue I've had with the barrel is that the screws weren't screwed in with loctite from the factory resulting in the screws backing out and the hop being too loose.

The good:
This barrel has increased the range of my pistol DRAMATICLY I can easily shoot just as far as some of my AEG's(100+ft) I will say that is not super accurate, but it can reach that distance easily. I don't know what fps I'm getting but I would assume it is a lot better than the factory barrel's of my EMG STI / TTI Licensed JW3 2011.
This is an amazing upgrade if you want an accurate pistol that can actually reach out and hit your target.
by David W. on 11/16/2021
"Works well, but MUST BE ISED IN A FIXED OUTER BARREL!!! WILL NOT WORK IN STANDARD SLIDING BARREL like what’s in most WE and AW customs hi-capas!!!
by Taylor D. on 06/10/2020
"This is a good combo for a decent price just make sure to lock tite the screws before use...if you don’t they will come loose and your hop wheel will rotate all over the place.

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