The P228 is a compact double-stack 9mm developed to meet a US Army requirement for a compact service pistol designated the M11. It shares the P226's action on a shorter frame with a 3.9-inch barrel and reduced overall length. The M11 was adopted by US Army Criminal Investigation Command (CID), the Secret Service, and various other federal agencies who needed a concealable but full-capability service pistol. The civilian P228 is mechanically identical to the military M11. Type: Pistol Action: DA/SA Caliber: 9mm Luger Capacity: 13 Year introduced: 1989, Germany Weight: 29.1 oz Overall length: 7.1" Status: Active Military use: Yes Intended use: duty, military, law_enforcement, carry