The NAA Pug is a single-action mini-revolver chambered in .22 LR and .22 WMR, with a 1-inch barrel and a 5-shot cylinder. It's a stainless steel gun built for deep concealment, small enough to disappear in a pocket or an ankle rig. 
 

Key Specifications 

• Model: Pug 
• Caliber: .22 LR - .22 WMR 
• Action: Single Action 
• Capacity: 5-Shot 
• Barrel Length: 1 inch 
• Hand Orientation: Right Hand 
• Finish: Stainless 
   

Features 

 
The XS Tritium sight is the standout addition here. It gets you on target faster in low-light situations than a plain-blade sight would. The slip-on rubber pebble grip helps with control and takes some edge off the recoil, which matters on a gun this light. The ported barrel reduces muzzle rise for faster follow-up shots. 
 
These NAA mini-revolvers are genuinely pocketable in a way that most compact handguns aren't, and the Pug configuration with tritium sights is aimed at defensive use rather than just novelty.

The NAA Pug with tritium sights draws a fairly consistent profile of feedback: people like it for exactly what it is, a last-ditch backup or deep-concealment option.

The size is the top selling point. It goes places a full-size or even a subcompact can't, which is the whole point. Reliability gets mentioned positively. NAA revolvers are simple and robust by design. The tritium sights earn genuine appreciation from defensive-minded owners who actually use it as a carry gun.

The critiques are predictable. The small grip is uncomfortable for larger hands, and control suffers with it. Five rounds of .22 WMR or .22 LR isn't going to satisfy anyone who wants stopping power. That limitation is well understood but still noted by most reviewers. Single-action operation means manually cocking for each shot, which is slow under pressure. Most people who buy it do so knowing those tradeoffs going in and treat it as a backup to a primary carry gun rather than a standalone defensive weapon.