I don’t have any experience with those mags but I have had my reservations with that company. I purchased a Manticore charging handle for my AUG and definitely was not blown away by the quality. I haven’t had any issues yet but it’s more flimsy than the stock polymer handle and just feels cheap.I bought the 32 round magazines with steel lips manufactured by Manticore. As I load 20 rounds, the spring starts to fold over on itself. I can load 32 but it concerns me. Has anyone had trouble with these magazines.