Its got a decent theory behind it. In an enviroment where you need a pistol caliber or your one of those poor bastards in a department whos city doesnt believe they need rifles in the hands of Police, it has all the things you'd want a rifle caliber for but not be able to use it. 
I kinda dont like the idea of Pistol Caliber *I.E. 9mm and .40 cal ect* carbines and rifles. My school of thought was, when you go to your long guns its because you need your long guns capability. Ive got a handgun on my belt, I dont need a handgun on steroids I need a friggen rifle. Im kinda indiffernt to the P90, I just want one because they look wicked and the bullet does a lot of neat things. But then again I may fire one, and hate the crap out of it. We will see.
Personally Ive always been a fan of shorty shotguns and a good backup sidearm.
				
			I kinda dont like the idea of Pistol Caliber *I.E. 9mm and .40 cal ect* carbines and rifles. My school of thought was, when you go to your long guns its because you need your long guns capability. Ive got a handgun on my belt, I dont need a handgun on steroids I need a friggen rifle. Im kinda indiffernt to the P90, I just want one because they look wicked and the bullet does a lot of neat things. But then again I may fire one, and hate the crap out of it. We will see.
Personally Ive always been a fan of shorty shotguns and a good backup sidearm.
	
	
 I think it'd be cool as crap to own one. Just wouldn't trust my life with it.