Wanted to vouch for Tuma702 (Phillip's) build party. I didn't expect to walk into a garage with 2 Haas CNC machines. Each lower took ~10 mins and required one jig change. The machine changes its own tooling so it was a matter of putting the lower in the jig, tighten it up and press the green button.
Definitely recommended to anyone and the last bonus is that he gets you a time slot so you arent waiting forever to get on the machine and prices are VERY reasonable.
I would definitely attend again if AR10 lowers are available to machine.