1/700 scale IJN 12,7cm/40 (5in) Type 89 barrels (12pcs) - most IJN warships - SM700-007 Used in most IJN battleship, cruiser, and aircraft carrier classes. 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.