I have the CX4 Storm and Cougar in .45ACP. Awesome combo and scary accurate. Did not think the carbine would have as much recoil though. A few magazines through it will leave a pretty attractive bruise. Bought both as a package. As each came with 2 mags that gives me a total of 4 mags for either weapon. May invest in the 9mm version and get a px4 to go with it.