I confess,

I do not have a clue. I have always purchased my Rifles complete, but the urge to build a suppressed sbr will not let me be.
The Trust is in place and I figured to start with a stripped lower receiver and get it engraved and send off for the stamp.

Looking for one to buy is like picking up a chick at last call. I can not honestly tell the difference between a 50$ PSA or a 350$ Novske. Made from the same material and supposedly to the same specs.

Can someone please spread a little info my way on what to look for or out for?

TIA