The North American Arms Mini-Revolver is a single-action 5-shot revolver chambered for .22 WMR and .22 LR, built entirely from stainless steel. At 4.63 inches overall with a 1.13-inch barrel, it is one of the smallest commercially produced revolvers available. 
 

Key Specifications 

• Caliber: .22 WMR / .22 LR 
• Action: Single Action (SAO) 
• Capacity: 5 Rounds 
• Barrel Length: 1.13 inches 
• Weight: 0.39 lbs (6.20 oz) 
• Finish: Stainless Steel with Black Synthetic Grips 
   

Detailed Features 

The stainless steel construction throughout resists corrosion without finishing maintenance. The single-action mechanism requires manually cocking the hammer before each shot. The half-moon cylinder configuration and fixed sights are standard NAA features. The gun ships with both .22 WMR and .22 LR cylinders, letting the owner choose caliber based on availability and intended use. 
 

Usage Scenarios 

The Mini-Revolver fits in a pocket without printing. It is used primarily as a backup gun, a last-resort defensive piece, or for recreational plinking. The .22 WMR cylinder gives it more energy than .22 LR at the cost of ammunition cost and availability. At 6.2 oz it adds virtually no weight when carried.

Discussions about the NAA Mini-Revolver in .22 LR / .22 WMR cover a consistent set of topics.

The compact size and light weight are the defining positives. Owners consistently note that it fits in any pocket, adds no meaningful weight, and can be carried in situations where larger guns are inconvenient or impractical.

The stainless steel build is noted favorably for durability and resistance to wear. Owners who clip it to a keychain or carry it loose in a pocket appreciate that it handles that environment without corroding.

The novelty and charm of the design gets its own conversation. Many owners describe it as fun to show at the range, and some bought it as a collector piece alongside their primary firearms.

Limitations come up consistently. Five rounds of .22 LR or .22 WMR is the most frequently cited drawback for anyone considering it for defensive use. Most discussions acknowledge it is not a primary defensive firearm.

The single-action mechanism requires practice. Cocking the hammer for each shot slows follow-up shots significantly, which is noted as a practical limitation under stress.

Recoil is mentioned as sharper than expected given the small caliber. The light frame transmits the .22 WMR recoil more noticeably than heavier revolvers.

Maintenance and cleaning are straightforward. Owners note that disassembly is simple and the gun does not require frequent attention.