As far as I know, no retailer in the US has the Crazy Jet barrels available so far.
Only exception is Evike, but they only carry 97 and 113mm barrels, that is, G-series and 1911 respectively. So no rifle-length Crazy Jets there either.
WGCShop, JKArmy, ShooterCBGear and eHobbyAsia are good Asia-based retailers with international shipping and good reputation to get them from.
Yup, actually asked ML to clear this confusion and it turns out all Crazy Jet barrels are 6.04mm
, those marked as 6.01 or 6.02 are retailer's "mistake".
Only way to have a 6.02 Crazy Jet would be place a custom order
directly with them. Which turns out you can do, so if you really, really like it to be 6.02 they can grab a regular Maple Leaf 6.02 steel barrel, machine the tip for a crazy jet sleeve, etc
That should also be much more expensive, didn't bother to ask (yet) but will surely cost as much or even more tha EdGI's. But hey, maybe that makes them worthy for some people
(pics from some random dude at ML Facebook group thanking them for the awesome barrel)
I might order one in the not so distant future.
But seriously, normal 6.04 Crazy Jet barrels are awesome, custom order a 6.02 doesn't really makes much sense.