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. Included Oal 7.88" Type Revolver Grips Black Finger Grooved Rubber Action sao Series *CA Compliant Sights Adjustable Marble Arms Front & Rear Weight 10.80 oz Caliber 22 WMR Capacity 5 Frame Size Small Hammer Style Exposed Weight Range 9 oz to 15.99 oz Barrel Finish Stainless Barrel Length 4" Cylinder Finish Stainless Barrel Length Range 4" to 4.99"