 Mossberg Shockwave. It's called the 590M. The M stands for magazine and it chips with a 10 round double stack magazine. It has a 15 inch barrel, cylinder bore with a fetus front sight, hand strap on the forend, bird's head grip, apodectrous magazine release. You have to rock it in like an AK. That's what the 20 round mag looks like. Double stack, very well built. The MSRP here is $6.57. You can hold it up like this or down by the hip. Great for home defense, shorty firearm, move around corners, do what you have to do. The best home defense is a 12 or 20 gauge firearm.