Are magazine rebuild kits legal to own in Jersey if the make a high cap mag when put together? I want to buy an AK74 mag 30 round rebuild kit, and change it to a permanent 15 round magazine. Would it be legal to have it shipped to me? Can a person be in posession of such parts in NJ? I found this on one of the sites but I'm not 100% on the legality. "New Jersey = Any magazine over 15 round capacity must be shipped as a rebuild kit."