All parts are relatively well cast with no bubbles. Unfortunately you will find lot of flash and resin film on most of them. Nevertheless I think that mentioned problem is not serious for skilled modeler. The much serious problem of the kit is the barrel of the gun. Though this part is reinforced with fine metal bar the cleaning of this part to useful shape is practically impossible according to my opinion. Therefore I recommend to replace this part wit new barrel made of grouting point (injection needle). The kit doesn’t include the gun shield supports. They have to be made of wire according to instructions included in assembly drawing.