Not to save money with c-AR15s under $500 (I do not suppose you could buy the parts for less than a built, new carbine).
The new complete gun will a have just one place to deal with if is a lemon.
A build can often be four or more suppliers to meet the goal.
A rifle seems a more realistic build. Rifle selection is such a small part of the market the choices are pretty slim.
You build because you cannot get exactly what you want over the counter.
And building them is half of the fun.
