The North American Arms 1860 Sheriff is a single-action .22 WMR revolver with a 2.5-inch barrel and a 5-round cylinder. It weighs 7.7 oz (0.5 lbs) and measures 6.31 inches overall. The frame and cylinder are stainless steel, and the grip is rosewood boot style. 
 

Key Specifications 

• Brand: North American Arms 
• Model: 1860 Sheriff 
• Caliber: .22 WMR 
• Action Type: Single Action Only (SAO) 
• Capacity: 5 rounds 
• Barrel Length: 2.5 inches 
• Overall Length: 6.31 inches 
• Weight: 0.5 lbs (7.7 oz) 
• Sights: Post Front Sight 
• Grip Material: Rosewood Boot Grip 
• Frame Material/Finish: Stainless Steel 
   

Detailed Features 

The stainless steel frame resists corrosion and holds up to outdoor use. The rosewood boot grip is compact -- it keeps the revolver pocketable while still giving you enough surface to maintain a reasonable grip. The post front sight is simple and unobtrusive. 
 
Single-action operation means you must manually cock the hammer before each shot. This slows your rate of fire compared to double-action revolvers, but the trigger break is typically cleaner and lighter as a result. 
 

Usage 

The NAA 1860 Sheriff is primarily a deep-concealment piece and backup gun. Its 5-round .22 WMR capacity is a real constraint -- the cartridge has some velocity from a 2.5-inch barrel, but range and stopping power are limited compared to centerfire calibers. It works well as a trail gun for hikers who want something extremely light against small wildlife threats, and for informal range use it's a fun curiosity. Anyone expecting primary-defense performance from it should weigh the caliber and capacity limitations carefully.

The NAA 1860 Sheriff draws two distinct camps: collectors who appreciate the historical styling and compact engineering, and practical carry users who treat it as a last-resort backup.

The stainless finish and rosewood grips get consistent praise for appearance, and the revolver's reliability is generally not questioned -- NAA mini revolvers have a reputation for going bang when you pull the trigger. The single-action trigger is clean and light, which users appreciate for the careful shooting this gun is best suited for.

Criticism centers on the 5-round capacity and the .22 WMR cartridge's limitations from a short barrel, particularly for defensive use. Some users wish the sights were more precise; the post front sight is functional but not adjustable. The single-action-only operation also means it's slower to get a second shot than a double-action revolver, which matters more when the cylinder only holds five rounds.

Overall, the 1860 Sheriff is bought by people who understand what it is -- a very small, very light, historically-styled revolver -- and those buyers tend to be satisfied.