I built my two ARs on a folding table sitting on my sofa while watching NASCAR on TV. No vises or fancy jigs. I do recommend using lots of painter's tape when trying to seat the bolt catch roll pin, as well as a roll pin punch. That's the only tool I regret going cheap on.I cannot find a decently priced complete lower anywhere, I would build myself but due to literally no space of my own for the next two months I'm stuck with buying complete.