Modern/Post-War Photos

Hungarian Museum Photo - with German Assault Rifle

Hungarians with a German assault rifle? Hitler never had enough of these weapons to go around, and I've never read of any being distributed to his allies. Yet I came across a web site with photos from a Hungarian museum, one of which had a display case of a Hungarian blouse and assorted weapons, including an assault rifle. As best as I can tell, the other weapons were all used by the Hungarians, suggesting the AR was too -- and probably not just a few stray field-acquired weapons, or why would the museum display it in this manner? There were a variety of other photos of weapon cases, but I can't recall any other weapons not used in respectable numbers by the MKH.... insights would be welcome!