The North American Arms Sentinel is a compact revolver chambered in .22 Magnum, designed for concealed carry and personal protection. At 6.7 ounces with a 1.5-inch barrel, it carries easily without being noticed, and .22 Mag offers a workable balance of power and low recoil for shooters at any skill level. 
 

Key Specifications 

• Model: Sentinel 
• Caliber: .22 Mag 
• Barrel Length: 1.5 inches 
• Capacity: 5 Rounds 
• Weight: 6.7 oz (shipping weight: 2.7 lbs) 
• Finish Type: Stainless Steel 
• Frame Material: Steel Frame 
• Grips: Black Rubber 
• Sights Type: XS Fixed Sights 
• Action Type: Single Action 
   

Features 

The stainless steel finish resists corrosion and wear. The swing-out cylinder allows quick reloading. XS fixed sights are set up for fast target acquisition rather than precision at distance. Black rubber grips give a secure hold and absorb some recoil. 
 
Five rounds is the tradeoff for the size. At 1.5 inches of barrel, this is a close-range tool. The design prioritizes portability over capacity or power. It works as a primary carry option when a larger gun is impractical, or as a backup for someone already carrying something bigger.

Owners of the NAA Sentinel in .22 Mag generally like it for what it is: a genuinely small, light revolver that disappears in a pocket or ankle holster. The stainless construction comes up often as a positive. It holds up to sweat and daily carry conditions. Most find the 5-round capacity acceptable for a gun this size, though some wish for one or two more rounds.

The trigger gets mixed reactions. It is single-action only, so it requires manually cocking the hammer for each shot, which slows follow-up shots. Some find that limiting in a self-defense context; others accept it as part of the platform.

.22 Magnum ammunition availability is a recurring complaint. It is harder to find than 9mm or .38 Special, and prices have been less predictable. A few users mention this as a practical drawback for regular practice. Overall the Sentinel has a loyal following among people who need something very small, but it is not a gun most would choose as their only defensive option.