Don't know about MG42, it's a pre-WWII German design, but SA43 seems to be a semi-auto imitation of SG43 which saw a lot of action in WWII. Here is the manual in case you need to know how to operate yours :-)
Thanks. I somehow misplaced my manual and the thing has just been sitting in the hall closet! :)
I’m so envious of his guns that he got confiscated. I’ve been saving up to get an SA43 for a while now. I love belt fed’s.