You think those specific uppers will be back in stock or they'll do a whole new deal?
I used to be signed up for their emails, but I don't have the email address that was signed up anymore. I signed up with my new one, lol...
PSA has been running pretty good deals for a while now ~550 for rifle kits that were free floated/optics ready set ups etc.
I'd just pull it up daily in the morning for a minute, all the best deals are right on the homepage so you don't have to dig around.