Absolutely, but we're talking about .5 MOA etc stuff. An AR15 is never going to be sub MOA with the 5.56 cartridge.
I will take my PSA over anything sub 1k. I built my own AR earlier this year pre pandemic for 1200 and yeah, it's lighter, it shoots more accurately, etc, but I also spent 4 times what I spent on a PSA.
Plenty of sub moa 5.56 ar's. Move beyond PSA and they get pretty common