I have purchased several rifle kits from PSA in the past few months to turn my stash of stripped lowers into rifles.
In my experience, I would stay away from the P-tac line unless you want super cheap. I have noticed several differences with this line including poor quality gas key bolts and crappy springs.
Their Freedom line is not too bad. They offer melonite coated barrels, stainless barrels, and pistol kits. I noticed that the small parts were better but nothing was marked HP/MP. I would equate this line with Stag or S&W M&P15s.
Their Premium line checks all the boxes that this forum would require in an AR platform. HP/MP barrels and bolts, proper staking, F marked front sight posts, etc etc... One difference that I have noticed is that all kits come with a carbine buffer instead of an H buffer.
Their CHF line is the premium line with CHF barrels. I would say that it would be like choosing a BFH barrel from BCM. The CHF barrel description is identical to Noveske's and FN's barrel description (249 barrel, double chrome lined...). They also offer a stainless CHF barrel. Something that I have never seen before. I called PSA and asked if they used FN barrels for their CHF barrels, since FN is a couple miles from PSA, but they would not confirm nor deny.
I purchased 2 complete CHF uppers to put on our department M-16s and made them M4s and they are very accurate and run 100%.
I also spent the day with a friend of mine who is very well known in the firearms industry and he was rocking a PSA CHF 14.7 middy LW while we were shooting on his range. He gave it the nod for an inexpensive quality rifle...

