New to AR's need help from AR guys

[Tully Mars]

Well, after Colt, Windham Weaponry, Wilson, and Noveske, I'd say a 100% unmodified S&W M&P15. Those were the #1 selling AR15 of 2016. Smith & Wesson is just as well known as Colt, maybe even more. The M&P has a thicker barrel unlike alot of the barrels on the market right now. I think Palmetto will become more famous as time goes by, they make decent stuff.

Palmetto has a good market and reputation down here. I have used their stuff on several builds with great results. Prices are still fair and everything I've had my hands on has been quality.