The North American Arms Mini-Revolver is a single-action mini revolver that accepts both .22 LR and .22 WMR via interchangeable cylinders. The 1.63-inch barrel and 4.63-inch overall length put it in NAA's standard mini format, and at 6.2 oz the gun disappears in a pocket. The stainless steel frame and rosewood birdshead grip are standard on this model. Capacity is 5 rounds. 
 

Key Specifications 

• Model: Mini-Revolver 
• Caliber: .22 WMR / .22 LR 
• Action Type: Single Action (SAO) 
• Capacity: 5 Rounds 
• Barrel Length: 1.63 inches 
• Overall Length: 4.63 inches 
• Weight: 0.4 lbs (6.2 oz) 
• Sights: Bead Front / Open Notch Rear 
• Grip Material: Rosewood Birdshead 
• Finish: Stainless Steel 
   

Detailed Features 

• Stainless steel frame and barrel for corrosion resistance 
• 1.63-inch barrel in the standard NAA mini format 
• Single-action mechanism; hammer must be cocked before each shot 
• Rosewood birdshead grip 
• Accepts both .22 LR and .22 WMR cylinders 
• 6.2 oz -- genuinely pocketable 
   
  The dual-caliber capability is the practical advantage here. .22 WMR delivers more energy from a short barrel; .22 LR is cheaper for practice. Both cylinders are included. Like all NAA minis, this is a close-range backup gun -- not a primary defensive firearm. The single-action format and 5-round capacity mean slow follow-up shots.

The NAA Mini-Revolver in the .22 LR/WMR dual-cylinder configuration gets broadly consistent feedback with a clear split between buyers who knew what they were buying and those who didn't.

Owners who bought it as a backup gun or pocket carry option are generally satisfied. The stainless construction and rosewood grips are well-regarded for finish quality. The lightweight (6.2 oz) makes all-day pocket carry genuinely feasible. The dual-caliber capability draws consistent positive mentions -- having both cylinders lets owners choose between economy (.22 LR) and slightly more energy (.22 WMR) without buying a second gun. The simple single-action mechanism is appreciated for its minimal complexity.

The criticisms are format-specific. Recoil with .22 WMR is snappier than expected from a gun this light. The 1.63-inch barrel limits accuracy beyond close range. The 5-round single-action cylinder means slow reloads. Most users acknowledge the Mini-Revolver is a specialized tool -- useful for situations where nothing larger is practical, less useful as a general-purpose defensive sidearm. Accuracy at close range is reported as acceptable; expecting precision beyond 10-15 yards is unrealistic.