The G37 is the full-size .45 GAP (Glock Automatic Pistol) pistol, chambered in the proprietary caliber designed by Glock and CCI/Speer to deliver .45 ACP performance from a shorter case compatible with double-stack 9mm-frame pistols. Adopted briefly by Georgia State Patrol and several other agencies. Type: Pistol Action: Semi-Automatic Caliber: .45 GAP Capacity: 10 Year introduced: 2003, Austria Weight: 27.69 oz Overall length: 7.95" Status: Discontinued Intended use: Law Enforcement, Duty Carry, Home Defense