u/JinkleHeimerShit

So I just purchased a couple AK kits from supersafetyshop and had a few questions to ask for anyone that has experience or some rounds with theirs. I ordered these before I noticed on the website that they dont list the type of metal they are. After I've just received them today and got my hands on them these are clearly cast parts and they're not even magnetic. I could care less on the finish of the parts but are these going to have any premature wear due to being made from aluminum or unknown pot metal? Just wanted to ask anyone who has some rounds on theirs if they'll at least last decently. Cause if these things are gonna eat themselves apart after 600 rounds then this seems like a bad buy.