I just bought this beauty last week but am waiting on N.C. pistol purchase permit to go through before I pick it up. I was wondering what type of USP 9mm this is because the barrel is threaded but it doesn't say Tactical on the slide and the rear sight is adjustable but it doesn't say Expert on the slide neither. I am totally confused. From the looks of the serial number I know its a 2013 year pistol but besides that I can't tell which variant it is. Thanks in advance for any input !!