Well in today' s Political Correct world some Police Departments Admin types don' t want their officers to carry a RIFLE. Ohhhhh such a dirty word [&:] So to get some extra yardage on a pistol a 9mm or .40S&W carbine with a 16" barrel vs. a 4" barrel can be let' s say, better but not best? Also for smaller officers who have complained of stiff recoil from 12guages.

Also would make a pretty good home defense carbine if you needed such a thing [&:]

The 9mm isn' t too bad, especially if you are using +P' s or +P+' s. Actually it' s pretty darn good. Not to get into a good ol' 9mm vs. 45acp debate (heck I' m a .45 fan darn it) but I don' t care to get shot center mass with a 9mm short much less a 9mm +P+ out of a 16" barrel