I'm considering a Beretta Cx4 Storm in .40 cal. My reason being is that if I have to go tactical it will be more likely a defensive close encounter short range situation. The Beretta Storm in .40 will take the same ammo and mag as my Berreta 96. I like the idea of a companion carbine/handgun combo with that kind of versatility and compability. I don't have a big background in tactical carbines. How does my idea sound?