Glock 33 Gen3 subcompact .357 SIG. The most compact .357 SIG pistol produced by Glock, intended for deep concealment carry by agency personnel requiring the cartridge. Type: Pistol Action: Semi-Automatic Caliber: .357 SIG Capacity: 9 Year introduced: 1998, Austria Weight: 21.89 oz Overall length: 6.29" Status: Active Intended use: Concealed Carry, Backup, Off-Duty