I'll second the Federal Arms barrels, I've got one in 400 cor-bon for my Colt 45, one in 357 sig for my Glock 23, one in 9mm extended and ported for my Glock 26 , also have a couple of other LEO friends with Federal's and they are just as pleased, for $90.00 each that's one of the few "real deals" still out there for guns....and best of all, I've had to do absolutely no / zero / nada smithing, they all just fit right in like factory.
Good Luck & Shoot Straight...russell