We'll have a brief look at the barrel sets here but to be honest I am not going to waist a lot of time because quite frankly in the day and age with some of the superb 2cm Flak38 barrels available these are simply rubbish, and expensive rubbish at that.
Close-up of the featureless flash suppressor
To sum up they are 1.5mm too long, the flash suppressor is too big and is just a solid lump with no pretext of perforations and is not even fully hollowed out, just an indentation at the tip. The two textured hand grips along the tube are represented as raised sections, well I think you get the picture so there's really not much more to say.
See a full comparison of available FlaK38 barrels which has been updated to include this barrel set.
Muzzle Reference images
20mm FlaK in WWII
By Werner Müller
Schiffer Military History
Leichter Zugkraftwagen 1t
Panzer Tracts No.22-1
Includes accurate 1:35 plans of the 2cm Flak 30
Photo Album 4
Tamiya Plastic Model Co.
FlaK 30/38 Sfl
Wydawnictwo Militaria 172
See the Fukuya-Works website for other products availableThanks to my credit card for the review set, I think?