The North American Arms Pug is a single-action .22 WMR revolver with a 1-inch barrel, 5-round capacity, and a weight of 6.4 oz. It measures 4.56 inches overall, 2.81 inches tall, and 1.06 inches wide. The frame is stainless steel. XS White Dot sights. Black pebbled rubber grip. 
 

Key Specifications 

• Brand: North American Arms (NAA) 
• Model Name: Pug 
• Caliber: .22 WMR (Magnum) 
• Action Type: Single Action Only (SAO) 
• Capacity: 5 Rounds 
• Barrel Length: 1 inch 
• Overall Length: 4.56 inches 
• Height: 2.81 inches 
• Width: 1.06 inches 
• Weight: 6.4 oz 
• Sights: XS White Dot 
• Grip Material: Black Pebbled Rubber 
   

Features 

The Pug is the .22 WMR variant in the NAA lineup, giving it a meaningful caliber step up from the .22 LR Mini-Revolver. The XS White Dot sights are an upgrade over the half-moon sights on smaller NAA models, providing a usable sight picture for a 1-inch barrel. The pebbled rubber grip controls the gun adequately given the lightweight stainless construction. Single-action; the hammer must be cocked before each shot. 
 

Usage 

Pocket carry backup, trail gun, and range curiosity. The .22 WMR develops noticeably more velocity than .22 LR from a short barrel, which is the practical reason to choose the Pug over the .22 LR model. Works as a hiking companion for small wildlife deterrence. Not a primary defensive pistol for most use cases.

The NAA Pug in .22 WMR draws similar reactions to the .22 LR Mini-Revolver, with the caliber upgrade adding a layer of discussion.

The compact dimensions are the primary draw -- the Pug disappears into a pocket, which is the whole point for many buyers. .22 WMR from a 1-inch barrel does produce meaningful energy and is a step up from .22 LR. The XS White Dot sights get credit for being more usable than the sights on smaller NAA models. Build quality and the stainless finish receive consistent positive marks.

The debates center on the .22 WMR caliber for self-defense -- some users find it adequate for close-range personal protection given the ballistics, others consider it marginal compared to centerfire options. The single-action trigger pull is heavy and takes practice to operate smoothly under stress. The gun's distinctive appearance generates consistent interest at ranges. Holster availability and general accessory support are limited. Overall, the Pug is viewed positively as a purpose-built pocket gun with honest limitations.