The NAA Mini-Revolver from North American Arms is a single-action .22 LR revolver built from 17-4 pH stainless steel. It weighs 4.5 oz with a 1.625" barrel and holds 5 rounds, making it one of the lightest carry options available. 
 

Key Specifications 

• Model: Mini-Revolver 
• Caliber: .22 LR 
• Action Type: Single Action 
• Barrel Length: 1.625 inches (1 5/8") 
• Capacity: 5 rounds 
• Weight: 4.5 oz (approximately 0.28 lbs) 
• Finish: Stainless Steel 
• Manufacturer: North American Arms (NAA) 
• Warranty: Lifetime 
   

Detailed Features 

 
The bird's head grip frame gives a more positive hold than a flat grip of this size. Hammer safety notches recess each cylinder chamber so the primer rim is not exposed to impact when carried loaded. Fixed U-notch sights provide a basic but usable sight picture at the ranges this gun is intended for. The 17-4 pH stainless construction handles moisture well and holds up to regular pocket carry.

The NAA Mini-Revolver with stainless/black pearl grip gets a divided reception. Fans point to its near-invisible carry profile and the quality feel of the stainless construction. The black pearl grip draws positive attention for appearance, and the simple revolver design is considered more reliable than a semi-auto of equivalent size.

The main criticisms center on caliber and capacity. A number of users argue that .22 LR is marginal for defensive use, and five shots leaves little margin. Accuracy at any distance beyond arm's length is a real limitation given the 1.625" barrel.

Most owners treat it as a niche tool: a last-resort backup or a pocket carry for situations where any larger gun is impractical. Within that role it's generally well-regarded; as a primary defensive pistol it draws more skepticism.