I am in the process of changing my AR-9 pistol into a carbine. I just ordered a KVP 16" 9mm barrel. It is going on an Aero stripped upper that will eventually be mated to a PSA complete lower. I'm going to use a PSA 9mm BCG. This is a pretty straight forward build but have never used KVP barrels. I'm wondering if anyone has any experience with their products, specifically their carbine barrels?