The Springfield Armory XD Compact in .45 ACP with a 4-inch barrel is a carry-optimized .45 ACP pistol that splits the difference between the SubCompact and Tactical configurations. The 4-inch barrel maximizes velocity while the abbreviated grip aids concealment. Type: Semi-Auto Pistol Action: Striker-Fired Caliber: .45 ACP Capacity: 13 Year introduced: 2007, Croatia/USA Weight: 32 oz Overall length: 7.3" Status: Active Intended use: Concealed Carry, Home Defense