The s333 thunderstruck is incredibly reliable because it functions as a double-action revolver.These revolvers are far more superior to any other automatic pistol which are rendered useless when they jam or misfire.Additionally, the two shots per pull, with four pulls of the trigger, makes the s333 thunderstruck the most redundant and reliable personal protection firearm when your life is on the line.Frame Description: Black AluminumAction: DAOCaliber: 22 WMRBarrel Length: 1.25"Capacity: 8Grips: Black PolymerWeight: 18 ozFrame Size: SmallCylinder Finish: BlackBarrel Finish: BlackBarrel Length Range: 0.50" to 1.99"Weight Range: 16.00 oz to 31.99 oz