Guys over at Arfcom swear by those Colt Socom bbls for 16" accurate builds.
Not surprising. The only chrome-lined AR barrels I know of that shoot better than Colt are Criterion, but they don't it looks like they make a great light one.
Fixed.
Criterion "Pencil" profile, via Fulton Armory. At 1.35 lbs., it'll make a light, accurate upper.
