The North American Arms Black Widow is a 5-shot single-action mini-revolver that ships with two cylinders — one for .22 LR and one for .22 WMR. The 2" barrel and 5.88" overall length make it one of the more compact carry options available, and at 8.9 oz it disappears into a pocket or ankle holster without effort. 
 

Key Specifications 

• Caliber: .22 LR / .22 WMR 
• Action: Single Action 
• Capacity: 5 Rounds 
• Barrel Length: 2 inches 
• Overall Length: 5.88 inches 
• Weight: 8.9 ounces 
• Sights: Marble Arms adjustable sights 
• Grip Material: Oversized Rubber Grip (BW Logo) 
   

Features 

The dual caliber setup lets you choose between .22 LR for economical practice and .22 WMR for a bit more energy on demand — just swap the cylinder. The Marble Arms adjustable sights are a notable upgrade over fixed sights found on many mini-revolvers at this size class. 
 
The oversized rubber grip, sized specifically for the Black Widow, gives more surface area than standard NAA grips and helps with control on the snappier .22 WMR loads. Single-action operation means the hammer must be manually cocked for each shot, which is deliberate by design in a pocket gun this small. The stainless steel construction resists corrosion and holds up well with minimal maintenance.

The NAA Black Widow generates a fairly consistent conversation among owners: people who understand what it is tend to like it; people expecting it to perform like a full-size handgun sometimes do not.

The compact size is the whole point, and most users appreciate exactly that. At 8.9 oz and under 6" long, it is one of the easiest firearms to carry consistently, and owners frequently use it as a backup or pocket carry option. The dual caliber capability — just swap the cylinder for .22 WMR — is a practical feature that adds utility without adding weight.

Simplicity and reliability come up together. Fewer moving parts mean fewer things to go wrong, and owners generally find the Black Widow functions dependably. The Marble Arms adjustable sights are called out positively, especially compared to what you'd expect on something this small.

Accuracy at extended distances is the realistic trade-off. The 2" barrel and short sight radius make precise shooting at distance difficult, and most owners accept that and practice accordingly at close range. The .22 WMR cylinder produces noticeably sharper recoil than the .22 LR cylinder — not painful, but more pronounced than people expect from such a light round.

Build quality gets consistently good marks. The stainless finish wears well, and the overall fit and finish reflect NAA's manufacturing standards. Price is seen as fair for what you get.