I believe that most AR's these days are made by the same company, but they just stamp the company'sname that they are selling it toon the lower. I just bought a new 24" Varmint Upper for my Bushmaster lower from mapartsinc.com. After that I have seen the same upper sold by other companies all claiming that they are the ones that made it.

Handloads will get me under a dime with 5 shots.