The designation M4A1 was applied to the M4 medium series to use an one-piece cast hull with a distinctive round shape. The up gunned M4A1 to mount an 76mm M1 high velocity weapon and a T23 turret ended up being different from the early M4A1 hulls since the hull front now places two large hatches the driver as well as the co-driver. The tank additionally had damp storage space security for the ammunitions hence the designation utilizing the W. initially these tanks were not welcomed by the troops nevertheless they were used with success inside Operation Cobra after the D-Day invasion. Ab muscles early M4A1 (76)W had some small differences towards the later standard type. The kit can build to depict these very early machines.