This is a Kel-Tec Carbine known as the Sub 2K 9 chambered in 9MM, model SUB2K9GLK19BBLK.
The semi-automatic Sub-2000(TM) is designed to be the most convenient 9mm or .40 caliber rifle available. It's adjustable and foldable to 16.25 x 7 inches for easy storage and accepts popular handgun magazines. It can easily be disassembled for cleaning or inspection without tools. The Sub-2000 is Ideal for backpacking trips and situations where space and convenience are paramount.
Features:
Adjustable Sights
Compact, Foldable Design
Easy Disassembly for Cleaning
Reinforced Polymer Grip