Turret
Turret shell and lower turret ring
Turret front parts
2cm KwK30 and MG34 showing the alternate metal barrels
should you want to use these for a little more detail.
Also note the Tamiya gun while the correct thickness is about 1.0mm too long.
Gun mounting parts
Comparison of the Dragon and Tamiya MG34 and 2cm KwK30 guns.
Note the slightly thicker Dragon 2cm barrel with the Tamiya barrel matching available data better.
Also the standard Dragon infantry MG34 requiring work to modify to the co-axial version supplied in the Tamiya kit.
MG34 and 2cm gun mountings