NAA Mini-Revolver Features The NAA .22 Magnum Ported Mini-Revolver is the ultimate in up front personal close-in protection. It s small easy to conceal and safe to carry using the half-way notch cylinder so the hammer may rest safely and securely away from live or empty chambers without chance of accidental discharge. The 22 Mag cylinder can be used with all popular 22 Magnum ammunition including .22 Magnum shot-shells. This model has a ported barrel and comes with a special 22 LR conversion cylinder made longer to easily fit in the .22 Magnum NAA Mini-Revolver. NAA Mini-Revolver Specifications Brand: North American Arms Category: Rimfire Revolvers Model: Mini-Revolver Caliber: 22 LR Capacity: 5rd Action: SAO Frame Finish: Stainless OAL: 5.13 Frame Material: Stainless Steel Sights: Bead Front Barrel Finish: Stainless Frame Size: Small Grips: Rosewood Birdshead Cylinder Material: Stainless Steel Cylinder Finish: Stainless Includes: Cylinder Barrel Description: 1.63 Ported Barrel Length: 1.63 Max Capacity: 5 Weight: 6.50 oz Frame Description: Stainless Steel Hammer Style: Exposed