The NAA Pug is a single-action mini-revolver chambered in .22 LR / .22 WMR with a 1-inch barrel and a 5-round cylinder. It measures 4.56 inches overall, weighs 6.4 oz (0.4 lbs), and comes in a stainless steel finish with a black rubber grip. XS White Dot sights sit at the front. 
 

Key Specifications 

• Caliber: .22 LR / .22 WMR 
• Action Type: Single Action Only (SAO) 
• Capacity: 5 rounds 
• Barrel Length: 1 inch 
• Overall Length: 4.56 inches 
• Weight: 0.4 lbs (6.4 oz) 
• Sights: XS White Dot 
• Grip Material: Black Rubber 
• Finish: Stainless Steel 
   

Features 

At 6.4 ounces, this is about as small and light as a functional revolver gets. The stainless finish resists corrosion and holds up to pocket carry. The black rubber grip improves retention over the plain wooden grips found on other NAA minis. The XS white dot front sight is a usable upgrade for quick target acquisition at close range. 
 
The single-action mechanism requires manually cocking the hammer before each shot. Combined with the 1-inch barrel, this is strictly a contact-range or short-range tool -- accuracy degrades quickly beyond a few yards, and the .22 LR caliber carries inherent limitations for defensive use that buyers should weigh honestly.

The NAA Pug draws mixed but mostly favorable reviews from owners who understand what it is.

Carry convenience is the main selling point. At 6.4 ounces it disappears into a pocket or waistband, and many owners use it as a backup gun or a last-ditch option when nothing larger is practical to carry. Ease of operation comes up frequently -- the gun is mechanically simple, loads reliably, and there is nothing to malfunction in a complicated way.

Build quality gets consistent praise. The stainless construction feels solid, and corrosion resistance makes it suitable for carry in humid or wet conditions.

Caliber is the most common point of debate. .22 LR is widely acknowledged as a limited self-defense round. Supporters note low recoil and affordable practice ammunition; critics point out that more capable defensive options exist in slightly larger packages. Neither side is wrong -- it depends on what tradeoffs the buyer is willing to accept.

Accuracy at close range is generally reported as adequate. Experienced shooters note that consistency with a 1-inch barrel takes practice, and follow-up shots require re-cocking.

The trigger pull is heavy for some users, which slows accurate follow-up shots. Finding holsters specifically sized for these mini-revolvers can take some searching, though a few specialty makers produce options.