[BlueSkyJaunte]

Originally Posted by gtc

I forgot that this was still in my shapeways portfolio. Uploaded as a test to see what it would cost. White Strong & Flexible is a sintered nylon material.
This is where I got the file:
Reinforced AR-15 Lower Receiver by HaveBlue - Thingiverse

Almost the cost of just going out and buying a new lower--except the one you would buy at your Friendly Neighborhood Gun Store (TM) is machined from aluminum!