The Kel-Tec Sub-2000 is a folding blowback semi-automatic pistol-caliber carbine that folds in half for storage. It chambers pistol cartridges and accepts pistol magazines — the 9mm version takes Glock 17, Glock 19, or S&W M&P magazines depending on configuration. When folded it fits in a standard briefcase or backpack. The Gen 2 adds improved sights and Picatinny rails. Type: Rifle Action: Semi-Automatic Caliber: 9mm Capacity: 17 Year introduced: 2001, USA Weight: 59 oz Overall length: 30.5" Status: Active Intended use: sporting, home_defense, travel