I have a complete Blackwell lower (made in Renton Washington), with a JP enterprises trigger (these run $119.99 from the website by themselves). It has EVERYTHING. It's ready to be slapped on your upper and go. It also sports a collapsable m4 buttstock and a magpul, enhanced trigger guard. It has seen light rounds, roughly 200. Asking $300 FTF or $310 shipped to your FFL.