First off, I'm about 36 years too late to the firearms party, but better late than never, right!
I've worked in the Tool and Die industry for 17 years and sadly never got into guns until 2016..... Imagine that! Haha. I've since accumulated a nice stash of Mid to High(er) tier weaponry (DDx2), FN, Colt, M&P and some oddball EDC stuff. I'm ready to start some of my own builds, especially seeing as I have endless tooling at my disposal; from Wire EDM to Surface Grinders. Can't wait to dive into this costly black hole!
Also, thanks to everyone for the info you all have compiled. Very impressive!