Ok, the crisis is over! We (His brother and I) talked some sense into his head. He ordered the barrel in the link below from MIDWAY. Thanks for all of the replies, input, and suggestions.

AR-Stoner Barrel AR-15 5.56x45mm NATO M4 Contour 1 7 Twist 16 Chrome
This AR-Stoner carbine barrel features a 5.56x45mm NATO chamber for full compatibility with surplus mil-spec ammunition or commercial 223 Remington ammunition. These barrels are constructed of 4150 chrome moly steel with a threaded muzzle and barrel extension which features M4 Feed Ramps. Additionally, these barrels feature a melonite coating which provides a thinner surface than chrome-lining, so bore friction is reduced for better accuracy. In addition, melonite is harder than chrome-lining providing a longer wear life.
The last sentence in the description is what sold him on this barrel.