Mags should be fine theoretically. But i'd avoid ones that have dummy rounds in em like P90 and G36 or you might get some trouble from customs. for the record, UN company is extremely fast at shipping. I've gotten one order from them in less than 3 days which was kind of scary fast from asia. My last order however got stuck at customs for a week and they opened everything.. including a bag of 8mm bbs. and every little baggie with small parts in them.
I have 2 personalities, Telkin and Valcrow.