SIG MCX Rattler LT lightweight pistol with aluminum receiver and 5.5-inch barrel. Reduced weight over the standard Rattler. Type: Pistol Action: Semi-Auto Caliber: 5.56x45mm Capacity: 30 Year introduced: 2021, Germany/USA Weight: 51.2 oz Overall length: 16.75" Status: Active Military use: Yes Intended use: Military / special operations / personal defense