16 inch ultralight 9mm barrel - FM Products Foxtrot Mike Ultralight 41V50 9mm AR Barrel

Used the 16in Barrel paired with the FM 9mm Muzzle Brake on ar9 carbine build, have taken it out and tested it on three separate occasions and have shot it at 25, 70 and 100 yards with a variety of different bullet weights ranging from 115 to 147 grains & the barrel handled the different bullet weights great - now keep in mind that I have not done any serious target shooting and have been just plinking at cans, bottles and random objects but all the shots have been right in there - so you can tell that it has potential - as far as different bullet weights it seems to really like the 115 GR FMJ the best