The Rock Island BBR 3.10 is a micro-compact 9mm 1911-style pistol with a 3.1-inch barrel and Officer-size frame. Designed for deep concealment at an entry-level price point. Type: Semi-Auto Pistol Action: Single-Action Caliber: 9mm Capacity: 7 Year introduced: 2016, Philippines Weight: 27 oz Overall length: 6.8" Status: Active Intended use: Concealed Carry, Deep Concealment