This is such a cool gun and it's great to have an offering in plastic now! I didn't even try to build the resin kits of the past. I really hope the fitting dimensions of this kit are correct. Someone should be along with a metal barrel and muzzle, feeding clips, ammunition, boxes and gun, carriage and mount details. I know a few were used in Normandy and there were a couple along the Rhine that fired on Allied vehicles crossing. I believe the ones on the Rhine were static in open concrete emplacements.