What is the Freedom series from PSA? I see it in the offerings but I dont see a difference in the features of the lower assemblies and other parts.
Welcome.
As I understand the Freedom Series is quality builds while budget friendly to maximize Freedom.
The lines at PSA are mainly furniture related.
Classic: Standard waffle stock and grip
Freedom: Will mainly be Magpul grip and stock. May also come with BUIS and a nitride barrel over phosphate. Usually has a freefloat handguard over the standard FSB and two piece handguard.
Premium: Usually an FN CHF barrel, potentially an upgraded BCG (toolcraft), maybe a lighter rail.
Sabre: Lots of upgrades, including some matched billet receiver sets.
Welcome to the forums @azfisher 
Thank you! The exact information I was looking for.