The North American Arms Sentinel is a purpose-built mini revolver chambered in .22 WMR, delivering a meaningful step up in terminal performance over rimfire pocket guns in a package small enough to disappear in a pocket or serve as a reliable backup. Built on NAA’s proven single-action platform, the Sentinel pairs a matte stainless finish with XS White Dot fixed sights — a practical upgrade that gives you a fast, usable sight picture when it counts. Five rounds of .22 Magnum on tap in an ultracompact frame makes this one of the most packable defensive revolvers on the market.
Key Specifications
- Chambered in .22 WMR (.22 Magnum) for enhanced downrange performance over standard rimfire.
- The barrel measures 1.42 inches, keeping the overall profile ultracompact for deep concealment.
- Cylinder capacity holds 5 rounds of .22 WMR.
- The action is a single-action revolver platform consistent with NAA’s trusted mini-revolver design.
- Finished in matte stainless for corrosion resistance and reduced light signature.
- Sights are XS White Dot fixed units, providing a quick and practical aiming reference.
- The revolver ships in a package weighing approximately 2.6 pounds including packaging.
- California residents — this model cannot be directly shipped to California addresses.
Whether you need an always-there backup to a primary carry gun or a deep-concealment option for days when carrying anything larger isn’t practical, the NAA Sentinel checks both boxes without compromise. The upgrade to .22 WMR over .22 LR, combined with XS White Dot sights and NAA’s time-proven build quality, makes the Sentinel a serious tool dressed in a small package. If you’ve been looking for a mini revolver that brings a little more to the table, this is it.
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