Spend some time perusing the Palmetto State Armory website. A lot of their parts are surplus from FN overruns on the DoD contract.
Don't be shy with their "blems" either. I have bought a few of their blem receivers, and I swear I cannot tell what makes them "blems".
Don't be shy with their "blems" either. I have bought a few of their blem receivers, and I swear I cannot tell what makes them "blems".