Double-stack variant of the Thunder 9 Ultra-Compact with a 13-round magazine, splitting the difference between the minimal UC and the full-size Thunder 9 Pro. Compact barrel and slightly extended grip versus the standard UC. Type: Pistol Action: Semi-Automatic Caliber: 9mm Capacity: 13 Year introduced: 2016, Argentina Weight: 24.5 oz Overall length: 6.8" Status: Active Intended use: concealed_carry, backup