Beretta .45 Storm Carbine

[W L Johnson]

The 9mm Storm uses Beretta 92 mags, I have stacks of them piled next to my storm

Or PX4 mags (like mine), it depends on which version you get. If you want to change it from taking 92FS to PX4 mags (or vise versa) you can order the mag well insert, but CX4s can be ordered ether way.
Midwayusa has them
http://www.midwayusa.com/viewproduct/?productnumber=420447 for switching from 92/96 to PX4 mags
http://www.midwayusa.com/viewproduct/?productnumber=545728 For switching from PX4 to 92/96 mags

Now if they would only make it in 357sig.

 

[IdahoLT1]

The CX4 storm can also be modified to accept Cougar mags.

They are not +p rated either. But in .45 you could expect an extra 100-150fps with the 16" barrel.