The North American Arms Mini Antivenom is a single-action .22 Magnum (.22 WMR) revolver with a 1.625-inch barrel, 5-round cylinder, and Snake Skin Camo finish. It weighs 2.6 oz, the kind of light that disappears in a pocket or on a key chain. 
 

Key Specifications 

• Caliber: .22 Magnum (.22 WMR) 
• Barrel Length: 1.625 inches 
• Capacity: 5 rounds 
• Weight: 2.6 oz 
• Finish: Snake Skin Camo 
• Type: Revolver 
• Manufacturer: North American Arms (NAA) 
• Model: Mini Antivenom 
• Condition: New in Box 
   

Detailed Features 

NAA Mini revolvers use a half-cock safety notch that locks the cylinder between chambers, keeping the hammer off a live round for safe carry in a pocket. The single-action mechanism requires thumbing the hammer back before each shot. The Snake Skin Camo finish is durable and distinctive, setting it apart from the standard stainless NAA Mini. 
 
At 1.625 inches, the barrel is short even by NAA standards, making this a close-quarters backup option or trail gun for small wildlife encounters. Five rounds of .22 Magnum provide more energy than .22 LR from the same platform. The revolver is ambidextrous by design, no manual safety levers to favor either hand.

NAA Mini revolvers in .22 Magnum have a specific and well-defined user base, and the Antivenom sits comfortably within it. Owners primarily discuss it as a backup piece or a trail gun for wildlife deterrence at close range, not as a primary defensive carry option. The Snake Skin Camo finish gets positive comments for its appearance and its differentiation from the standard stainless versions.

The .22 Magnum caliber's limitations are openly discussed. Five rounds of .22 WMR from a 1.625-inch barrel is less stopping power than most centerfire defensive options, and users who understand that tradeoff are satisfied with what the platform offers. Buyers expecting primary defensive performance from the format are generally redirected in forum discussions toward larger platforms.

Weight and concealability are the consistent strengths cited. The 2.6 oz weight is genuinely pocket-friendly in a way most defensive handguns are not. The single-action operation is slow compared to double-action revolvers, which is part of the honest discussion about the platform's role.

Very small, well built, and easy to operate. Mine is accurate at seven yards.