Gen 4 update to the G33 adds RTF2 texture, dual recoil spring assembly, reversible enlarged magazine release, and interchangeable backstraps to the subcompact .357 SIG platform. Type: Pistol Action: Semi-Automatic Caliber: .357 SIG Capacity: 9 Year introduced: 2012, Austria Weight: 19.75 oz Overall length: 6.41" Status: Active Intended use: Concealed Carry, Law Enforcement Backup