The Springfield Armory XD-S is a single-stack ultra-slim .45 ACP pistol with a 4-inch barrel. Designed specifically for concealed carry, the XD-S is one of the thinnest .45 ACP pistols available, measuring under an inch wide. Type: Semi-Auto Pistol Action: Striker-Fired Caliber: .45 ACP Capacity: 5 Year introduced: 2012, Croatia/USA Weight: 23 oz Overall length: 6.9" Status: Active Intended use: Concealed Carry