37 mm SKC/30 (16 pcs), 20 mm C/30 (12 pcs), 20 mm C/38 (8 pcs)

Fits Trumpeter Bismarck kit.

The set includes turned brass barrels. It is very simple to use in Your model. Simply cut off the original plastic barrel and drill a hole in the remaining part and insert the metal barrel using Cyanoacrylate adhesives.