Atlantic Firearms doesn't make the guns, so it's not their fault. The guns are made by Velocity Firearms and are assembled from a Mckay receiver. McKay only does the stamping and welding so they don't put the sling swivel on. Velocity should be doing it during their assembly but have chosen not to for some reason. BWE firearms sells the sling swivel (https://bwefirearms.com/product/uzi-sling-swivel/) and the rivet (https://bwefirearms.com/product/uzi-sling-swivel-rivet/)
FYI, I just bought the Atlantic Arms version of the Uzi. Low and behold it has the front sling swivel installed even though the pics on the website show a version without it.
I was eyeballing them and thought for a 1k gun shouldn't it have new handguards and pistol grips too? As luck would have it I ran across a Vector full size Uzi pistol for 900 and now just waiting on the Form 1
stamp for the SBR.