Yes, AA formed the originals back in 1976, but he is not using the original moulds today. His helmets are derived from moulds that came from casting he made after ANH which were modified from the original design. The helmets had ribbed tubes at the back and they were made in three main sections, unlike the original two piece design.
Other makers of helmets like TE actually moulded a real helmet from ANH and that is why they are more accurate. His moulds are first generation recasts and the most accurate replicas made. AA's moulds are modified from a modifed version of an ANH helmet, so they are far from accurate and lack size and shape of many features to make an accurate replica.