I got an AR Stoner 24" bull stainless barrel from Midway and built my own upper. Rifle length gas, side charging receiver(was going to be my PA legal AR before they legalized them). I want to say with the factory second carbon fiber handgaurd I had less then $500 invested. At 300 yards(the longest I have access to) off bags I can hold a 2" group. That may be some of my fault, all I had to put on it for a scope at the time was a 3-9x40. I want to upgrade that before this summer to at least a 4-16, but I have my eyes on an 8-32 that's really got me licking my chops... Just need cash.
Remember, shoot straight and shoot often.
Good... Bad... I'm the guy with the gun.