What you get is regular barrels, but in different chamberings than current factory barrels and in different available lengths; also higher polish is available and different profiles (somewhat). I've owned a few and have been happy, but some say they get better accuracy with SSK or Bullberry barrels. I've not seen that; they all perform about the same for me, but maybe I'm not such a great shot. If I can get 1/2 - 3/4" at 100 yds I'm happy.
RonF