What would you recommend? I'm considering building the lower, but buying a complete upper. I'd rather not mess with headspace. I had enough of that fun when I built my FAL.
The headspace on a freshly built upper from an AR15 should always be good with a new barrel and bolt. (I could be wrong here, but this is from what I have read) The barrel is automatically indexed by a small notch...
Im asking everyone here, am I correct in the above? It is my first upper build.
Anywho, I pruchased a Go headspace guage just in case.
Do build the lower, its very easy. I built mine in 15 minutes without the proper tools!
(Razor Blade, ballpoint Pen, Hex Key Wrench (Doubled as a fat punch), the parts kits plastic baggie and a pair of pliers)
Anywho, I, as would many others... recomend the following for quality upper receivers.
Bushmaster: "best barrels" (better steel)
Armalite: Lifetime warranty
Rock River Arms: Cheapest parts but still have VERY high quality (Some models lack chrome lining. I say go chrome or go home, but thats just me)
I left out Colt because it can be argued that the quality is almost the same with all four, but Colts price is noticably higher than all three manufacturers.
J&T, Model 1, and those others all make a functioning product, but be aware that they wont match the quality of the top tier manufacturers.
This lack of quality may be in their warranties, their steel, their fit and finish, ect. Some people have put umpteen rounds through a cheaper kit, thats great. However, when ppl mention good rifles to neophytes, its always Bushy, Armalite, Colt, and Rock River. You just cant go wrong.