The Px4 Storm By Beretta
A semi-automatic pistol with a rotating barrel lock system as seen on the Beretta 8000 / Cougar
The cougar 8000 was introduced in 1994 as a compact alternative of the classic Beretta 92
the cougar was made of aluminum alloy weighing 30-32 ounces.

The new Beretta Px4 storm weighs only 25 -27 ounces depending on model.

PX4 Storm Field Stripped

The Px4 is available in four models:
* Type F: Single and double-action. De-cocker. Manual safety.
* Type C: Single-action-only (“Constant Action”). Spurless hammer. No de-cocker. No safety.(shown above)
* Type D: Double-action-only. Spurless hammer. No de-cocker. No safety.
* Type G: Single and double-action. De-cocker. No manual safety.

Available in 9×19, 40s&w, and the Special Duty 45ACP exclusively in a slick desert tan polymer frame with black slide and Threaded barrel to easily attach a suppressor .
The Px4 Storm SD is available in full size and Sub Compact.

Tho the sub compact PX4 Storms Do NOT have the unique rotating barrel.
And if you ask me the rotating barrel is the biggest selling point of the PX4!

Beretta PX4 Storm rotating barrel lock

other than the full size 9mm(9×19) round capacity with the full size 9mm with factory extended magazine that holds 20 rounds + 1 in the chamber! or 17+1 with factory standard magazine!
tho the subcompact has a fairly large round capacity for its size at 13+1 in 9mm and 10+1 in 40s&w!
the benefit of the px4 sub compact models vs any other sub compact pistol is the out of box customization options you have the ability to change the grips/back strap, magazine release buttons and the slide catch/release and even the hammer to fit your needs and another added benefit of the px4 subcompact is the ability to use the same magazines from the full size px4 of the same caliber. Perfect as a back up gun ideal for any leo to carry the full size PX4 in a holster on the hip and conceal carry the subcompact and no need to carry multiple back up mags! so your subcompact can become a hi cap power house with capabilities to carry 20+1 in a sub compact is rare not that you would want to carry a sub compact with a mag that size it is nice to know you can.

Over all this is a very nice gun fully ambidextrous tho maybe a little bulky for some with its wider than average frame but with the customizable ergonomic options as it can become a comfortable shooter for almost any one.
And Beretta claims the PX4 to be the most durable hand gun they have made to date even better than the classic legendary 92