USN 16in/50 (40,6 cm) Mark 7 barrels for use with kits that have blastbags (9pcs) in 1/350 scale (stock photo) for the Tamiya kit #78018
Used in Iowa (New Jersey, Missouri, Wisconsin) and planned to be used in canceled Montana class battleship

The set includes turned aluminum 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.