The mini master evolved from naa's magnum frame series and includes the time tested design characteristics that are incorporated in all naa mini-revolvers.The result is enhanced stability and accuracy for the more serious shooter.The naa mini-master is outfitted with a 4" heavy vent barrel bull cylinder and marble arms adjustable sight.*ca compliant.Frame Description: Stainless SteelType: RevolverAction: SAOCaliber: 22 WMRBarrel Length: 4"Capacity: 5Hammer Style: ExposedGrips: Black Finger Grooved RubberSights: Adjustable Marble Arms Front & RearWeight: 10.80 ozFrame Size: SmallCylinder Finish: StainlessBarrel Finish: StainlessOal: 7.88"Barrel Length Range: 4" to 4.99"Weight Range: 9 oz to 15.99 oz