North american arms'.22 magnum wasp features a vent rib and a skeletonized hammer.It also includes a.22 lr conversion cylinder.Frame Description: Stainless Steel FrameType: RevolverAction: SAOCaliber: 22 LRBarrel Length: 1.13"Capacity: 5rdHammer Style: ExposedGrips: Black Pebbled RubberSights: Bead FrontWeight: 6.20 ozFrame Size: SmallCylinder Finish: StainlessBarrel Finish: StainlessOal: 4.63"Includes: CylinderBarrel Length Range: 1" to 1.99"Weight Range: 3 oz to 8.99 oz