The NAA Mini-Revolver is a 5-shot single-action revolver chambered in .22 LR / .22 WMR. At 6.5 oz and 5.13 inches overall with a 1.63-inch barrel, it's genuinely tiny - small enough to carry in a coin pocket or key fob holster. The stainless steel barrel and cylinder resist rust, and the black synthetic holster grip keeps the profile compact. A half-moon sight system provides a basic aiming reference. Single-action operation requires manually cocking the hammer between shots. 
 

Key Specifications 

• Brand: NAA (North American Arms) 
• Model Name: MiniRevolver 
• Caliber: .22 LR / .22 WMR 
• Action Type: Single Action (SAO) 
• Capacity: 5 rounds 
• Barrel Length: 1.63 inches 
• Overall Length: 5.13 inches 
• Weight: 0.4 lbs (6.5 oz) 
• Sights: Half Moon sight system 
• Grip Type: Black Synthetic Holster grip 
• Finish: Stainless steel barrel and cylinder

The NAA MiniRevolver in .22 LR has a loyal following built mainly on its extreme concealability. Owners who carry it treat it as a true last-resort gun - always on the body precisely because it fits where nothing else will. The stainless build gets credit for durability and the simple single-action mechanism for reliability.

The fun factor is real too. Many owners describe it as a satisfying range toy that generates attention without costing much to feed.

Critiques are predictable and honest: 5-round capacity is low, .22 LR stopping power for defensive use is an ongoing debate, and the small grip makes extended range sessions uncomfortable. Achieving accuracy beyond very close range takes practice given the 1.63-inch barrel and fixed half-moon sights. The price sits in a range where some buyers feel alternatives with more capacity exist, though none match it for sheer concealability. Most experienced owners position it as a specialty carry piece rather than a general-purpose defensive handgun.

Extremely compact, but removing the cylinder makes ammunition changes frustratingly slow.