Quote Originally Posted by BradyT88 View Post
If I get one it will be the 7" version. 4" might as well get a handgun. The longer carbine version likely has a minimal gain in muzzle velocity over the 7" since the 9mm is a handgun round.

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If you shoot factory ammo that is true. If you reload you can take advantage of the longer barrel for more gains. I honestly haven't myself, but IME you definitely could. That being said if you are going to suppress it then you wouldn't bother. One other aspect is feel for training. The carbine is a cheap way to train with a rifle. But, if you add a suppressor to a pistol and a good brace it will handle like a rifle also.