So I am looking into 9mm suppressors. When you add a suppressor to a short barrel does it act as a barrel extension? giving the same or close to the same numbers as a barrel of the same length? My dilemma is a I want a PCC but I am looking to suppress in the future. So going with a pistol version of the gun with a brace and adding the suppressor should yield the same results as the 16" carbine?