Master Models' 1/350 Richelieu Armament set for Trumpeter kit includes 3 different calibers of barrel. There are 8 of the 380 mm/45 (14.96") Model 1935 barrels, machined from aluminium. These barrels are full length, for mounting without a blast bag. (The Trumpeter kit includes both full length, and bagged, barrels. Next are 9 152 mm/55 (6") Model 1930 barrels for the 3 triple barrels secondary turrets. The 152mm were supposed to be a dual purpose mount, but failures in the hoists lead to additional 100mm twin mounts being added. Completing the set are the 12 100mm barrels for those twin AA mounts.

The 380mm barrels actually require a 1.5mm drill bit, not a 1mm.