Hey everyone. I currently have a Daniel Defense DDM4 300BLK. It has the standard 10.3" barrel on it, but i am wanting to go with a 9". I contacted DD to get a recommendation for a barrel that is up to the same standards of DD. As you would expect, they said that they couldnt think of anything that has the reputation that DD does that they would recommend. So im on here looking for recommendations of a barrel company that has a 9" that is very high quality, great reputation, etc. FIRE AWAY!