Hey guys, I just registered and this is my first post. I had a question about a late version Bf 109 Kurfurst model that maybe somebody could help me with. I've read from several sources that a certain number of the 109 K-4 models were equipped with MG 151 15mm auto cannon in place of the standard production issue MG 131 heavy machine guns in the engine cowling. I don't know if it was only one that was made, a few, a small production run, or it was offered as a mod kit out in the field - if it existed at all. I had heard that one squadron received a small number of K-4's with this configuration, and that it may have also included the engine mounted Mk 103 instead of the Mk 108. The 15mm 151's were said to have been partially visible and exposed outside the cowling due to the difference in size. I saw that this subject came up back in 2004 and I was wondering if anyone from that time, like Emil Kurfurst, was still here? I was looking for this info partly because I also play War Thunder (I fly German planes almost exclusively) and I would love to petition Gaijin to make this particular armament available to the K-4, if one of these existed and flew. There has to be a documented case and for that model to have flown in order to qualify for inclusion in War Thunder. Anyone familiar with Gaijin of course will know that they downplay Germany's history as much as possible (and play up Russian technology to a level bordering on absurd) so the chance of them including a configuration like this in the game is about one in ten million, but I'd like to try anyway, if there's a historical basis.