Char B1 bis (plastic boxset)Upgrading the Char B1, the Char B1 bis had thicker armour and an APX4 turret with a longer barrelled (L 32) 47 mm SA 35 gun, giving it more anti tank capacity alongside the 75mm hull mounted howitzer. French experiences during The Great War influenced their belief a breakthrough tank would be needed in future conflicts, hence the design of the heavy Char B1 and B1 bis. This kit allows you to build French or German gun tanks or as one of two versions