Kel-Tec SUB2K9GLKBLK: The semi-automatic SUB2000 is designed to be a convenient 9mm caliber carbine. It folds completely in half for easy storage and can accept G19/G17 handgun magazines. Plus, it can easily be disassembled for cleaning or inspection without tools. Ideal for backpacking trips and situations where space and convenience are paramount. The SUB2000 is a \"put-it-on and leave-it-on\" optics ready carbine thanks to its rotating forend. The simple, singlehanded movement and positive locking system keeps your optic of choice zeroed and ready to go on a moments notice. The modularity is extended by M-LOK accessory compatibility and plenty of picatinny rail space on top and bottom. Magazine capacity varies by magazine.