here's the problem the more i read the more confused i get about them...most of them say no f.f.l. required so if that's the case the big brown truck drops a box or two off at my house and i have a new toy(almost).well that's all well and good but what are they missing?what machine work do they need? any other parts i need to buy? no yes most of this is pretty open ended on my questions but any help would be great.
usually, the kits are only missing the receiver. with an ar, it would be the lower receiver, as it is the lower receiver on the ar which 