buying the armalite. It comes with a Radian Raptor charging handle, a cmc trigger, and it'll be wearing a suppressor for the muzzle.Build one.
Use a complete PCC lower that takes glock mags, and build the upper, or just build the whole thing.
16" .40 AR barrel
Or buy one, and not end up with what you really want,
and end up changing the stock, trigger, hand guard, muzzle device, sights, grip, etc..