The Diamondback DB9 is an ultra-slim single-stack 9mm micro-compact. At under 0.8 inches wide and 11 oz, it was among the thinnest 9mm pistols when launched. Type: Semi-Auto Pistol Action: Striker-Fired Caliber: 9mm Capacity: 6 Year introduced: 2011, USA Weight: 11 oz Overall length: 5.6" Status: Active Intended use: Concealed Carry