A couple months ago I got a TNW Suomi which is a blast to shoot, but weighs 12 lbs. and has a trigger nearly as heavy. Both factors would prevent my wife from ever shooting it, so I went in search of a lighter, more modern alternative. I settled on a Beretta CX-4 Storm in 9mm setup for Beretta 92 (M-9) magazines, and bought one from Bud's Gun Shop last week. I picked it up fro my FFL last Friday and took it to the range Sunday for the first time. I'm very happy with the purchase.
(I pulled the IDPA target out of the trash to use as a cleaning mat. I didn't shoot it.)
In the second pic above, the long bar under the top half of the gun is the bolt. It uses a telescoping design similar to that of the Uzi. This, combined with the magazine well location in the pistol grip, result in a carbine with an OAL under 30". The short OAL and light weight (under 6 lbs. empty) make it a very handy little gun.
Aside from the trigger it's a real pleasure to shoot. There is well-known hammer mod to reduce the trigger pull but didn't want to tinker with the gun's innards before I tested it.
After I got home I ordered a Bushnell TRS-25 red dot sight from Amazon to go on the Storm. I have a couple TRS-25s on other guns and IMHO, they are the best deal going in an inexpensive micro-RDS. I also have a light mount, rail mount sling loop, and tactical sling on order. Overall, I am very happy with the Storm and look forward to shooting it a lot more.