1/350 scale USN 5in/38 (12.7 cm) Mark 12 barrels - for turrets without blastbags (20pcs) - SM350-017
Used in almost every US (and other) warship of WWII (and post-war).
The set includes turned brass barrels. It is very simple to use in Your model, and makes it extremely realistic. Simply cut off the original plastic barrel and drill a hole in the remaining part and insert the metal barrel using Cyanoacrylate adhesives.