Description
North American Arms took the two things people love most about their mini revolvers and put them in one gun. The Sentinel borrows the stubby ported barrel profile from the Pug and the swing-out cylinder from the Sidewinder, then adds a larger, easier-to-grab cylinder pin release up front. The result is a 5-shot single action that measures just 4.9 inches long and 2.8 inches tall, weighs around 7 ounces, and disappears into a pocket like nothing else on the market. This conversion model includes two cylinders, one in 22 WMR for carry and one in 22 LR so you can burn through affordable bulk ammo at the range without thinking twice.
Why the Sentinel Loads Easier Than Other Minis
If you have ever fumbled with pulling the cylinder pin on a traditional NAA mini, the Sentinel fixes that. Pull the locking block forward and the cylinder swings out to the right, and the pin doubles as an ejector to push spent cases far enough out to pluck them free. It is not a speedloader situation, but it beats fully disassembling the gun to reload, and swapping between the magnum and Long Rifle cylinders takes just a few seconds.
Built Like a Sentinel Should Be
The whole gun is machined from 17-4 stainless steel with a matte finish that shrugs off pocket lint, sweat, and rough handling. Up top you get an XS white dot front sight paired with a V-notch rear, which is a genuine upgrade over the tiny half-moon blades on older minis and much faster to pick up in a hurry. The slip-on pebbled rubber grip gives your hand something real to hold onto, and the cylinder has safety notches so you can rest the hammer between chambers for secure five-round carry.
Who the NAA Sentinel Conversion Makes Sense For
This is a deep-concealment piece for when nothing bigger will work, a backup that rides in a pocket you forgot it was in, or just a genuinely fun little wheelgun to have along on a walk or a round of golf. NAA builds these in Provo, Utah and stands behind them with a lifetime warranty, and the two-cylinder setup means practice sessions cost pennies.
Key Specifications
- Manufacturer: North American Arms
- Model: Sentinel Conversion
- Manufacturer Part Number: NAA-SNT-C
- UPC: 744253003721
- Caliber: .22 WMR / .22 LR (two cylinders included)
- Action: Single Action Only
- Capacity: 5 Rounds
- Barrel Length: 1.425 in
- Overall Length: 4.9 in
- Height: 2.8 in
- Weight: Approx. 6.7 oz
- Frame Material: 17-4 Stainless Steel
- Finish: Matte Stainless
- Front Sight: XS White Dot
- Rear Sight: Fixed V-Notch
- Grips: Slip-On Pebbled Rubber
What’s Included
- Sentinel mini revolver
- .22 WMR cylinder
- .22 LR conversion cylinder
- Owner's manual
- Factory box
Frequently Asked Questions
Does the NAA Sentinel Conversion come with both cylinders?
Yes, this is the conversion model (NAA-SNT-C), which ships with a .22 WMR cylinder and a separate .22 LR cylinder. It is not a kit you add later, both come in the box. Most folks carry it with the magnum cylinder and save the Long Rifle cylinder for cheap range practice.
How is the Sentinel different from the NAA Pug or Sidewinder?
Think of it as a blend of the two. It takes the short, stout barrel profile of the Pug and combines it with the Sidewinder's swing-out cylinder, then adds a bigger cylinder pin release that is easier to work with your fingers. You get Pug-level concealability with a noticeably more convenient loading and unloading process.
Is it safe to carry the Sentinel with all five chambers loaded?
Yes, when done correctly. The cylinder has safety notches machined between the chambers, so you rest the hammer in a notch rather than over a live round. That lets you carry all five rounds securely, and it is covered step by step in the manual.
How do you reload the Sentinel's swing-out cylinder?
Pull the cylinder locking block forward and the cylinder swings out to the right side of the frame. Pushing back on the cylinder pin acts as an ejector, moving spent cases out of the chambers about a quarter inch so you can pull them free by hand. It is not a fast reload like a full-size revolver, but it is far quicker than removing the entire cylinder on traditional NAA minis.





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