AR-15 Vice Block

thingiverse

Based of of the design of Frank bright (ya3dpc) I added a notch so the bolt catch doesn't rub up against this, and I also added an angled support so that the whole magwell rest on a support instead of just the back. I'm not the best designer and being as I'm using tinkercad, it likes to square off corners so you can see where I added to the original design. Lay it on its back to print, you won't need supports unless you just want the cutout for the bolt catch to be great looking.