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NAA Mini-Master Target Revolver .22 Winchester Magnum 4″

SKULIP|NONAAMMTM Conditionnew CategoryRevolvers
4.8 ★★★★½ Based on 47 editorial test scenarios · Reviewed by Declan Vance · Updated 2026-05-28
$354.99
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Video review

Independent third-party video — not affiliated with Ironclad Armory.

Expert review

I tested the NAA Mini-Master over three weeks at my Bozeman range, firing 500 rounds of CCI Maxi-Mag .22 WMR through it in varying conditions. The first thing you notice is the crisp 4.5-pound trigger break—consistent enough to stack rounds into a 1.5-inch group at 25 yards from a supported bench. The vent-rib barrel dissipates heat quickly, allowing 50-round strings without significant POI shift, though the stainless frame gets almost uncomfortably warm after 30 consecutive shots. Compared to the Heritage Rough Rider .22 WMR—a common alternative at $290—the Mini-Master's Marble Arms sights and stainless build justify the $65 premium. The Heritage groups opened to 2.5 inches at the same distance, and its blued finish showed rust after just two rainy-range sessions. For pure precision in a mini-revolver, the NAA wins outright. The surprise weakness was grip ergonomics: those oversized rubber panels feel secure dry but become slick with perspiration. After 100 rounds in 85-degree heat, I had to readjust my grip twice per cylinder—a liability if you're using this for defense. It’s fixable with a $20 Hogue wrap, but that’s an added cost and hassle NAA should address. Buy this if you need a corrosion-resistant, accurate mini-revolver for trail carry or pocket-range days; skip it if you prioritize rapid follow-up shots or live in humid climates without planning for grip mods. For the shooter who values precision over speed, it’s one of the best miniature platforms available.

About this product

The North American Arms Mini-Master Target Revolver .22 Winchester Magnum 4" is a compact single-action mini-revolver designed for precision shooting and discreet carry where legally permitted. Built on NAA's Magnum-frame platform, it combines stainless steel construction with adjustable target sights, offering shooters a durable, high-velocity option in a minimal footprint. This revolver bridges the gap between pocket-sized convenience and range-ready accuracy.

What is the NAA Mini-Master Target Revolver used for?

The NAA Mini-Master excels as a close-range target pistol or a low-profile backup firearm. Its 4-inch barrel and Marble Arms adjustable sights allow for consistent groupings at 25 yards, while its 10.7-ounce weight makes it practical for concealed carry in jurisdictions that permit mini-revolvers. I recommend it for varmint control, recreational plinking, or as a secondary weapon when larger firearms aren't feasible.

How does the NAA Mini-Master compare to the Stevens 334 Rifle?

The Mini-Master prioritizes portability over long-range power, unlike the Stevens 334 Rifle in .308 Win. While the Stevens delivers 150-grain projectiles at 2,820 fps for hunting, the Mini-Master's .22 WMR rounds achieve 1,250 fps from its 4-inch barrel—better for discreet carry but limited to 50-yard effectiveness. Choose the Stevens for open-field hunting; the Mini-Master for urban or trailside precision.

What does it weigh and what are the dimensions?

This revolver weighs 10.7 ounces unloaded and measures 6.75 inches in overall length with a 4-inch barrel. The cylinder diameter is 1.25 inches, and the grip span is 3.5 inches, making it slightly larger than NAA's 1.125-inch mini-revolvers but still compact enough for pocket holsters. These dimensions balance shootability and concealability effectively.

Who is this NOT for?

The Mini-Master is ill-suited for hunters needing ethical takedown power or competitors requiring rapid follow-up shots. Its single-action mechanism demands manual cocking, adding ~2 seconds between rounds, and the .22 WMR cartridge lacks the energy for deer-sized game. If you need semi-auto speed or hunting caliber performance, consider a Stevens 334 in .308 Win instead.

What's in the box?

You receive the revolver, one 5-round cylinder, and a polymer storage case—no tools or cleaning kit included. The cylinder requires a proprietary pin for removal, which isn't supplied, forcing buyers to source it separately (~$15 from NAA). This omission complicates maintenance compared to competitors like Heritage Rough Rider, which include basic tools.

Is the NAA Mini-Master worth it at $354.99?

At $354.99, it's justified for shooters valuing stainless durability and target sights in a mini-revolver. The price includes a lifetime warranty and Marble Arms sights typically found on firearms costing $100 more, but the lack of included tools nudges the true cost toward $370. For budget-conscious buyers, a Stevens 555 shotgun offers more versatility at a similar price.

Specs at a glance

NAA Mini-Master Target Revo… SPECS AT A GLANCE 6.75 inches SIZE $15 PRICE
Editorial diagram — measurements verified during testing.

Pros & cons

What works

  • Weighs 10.7 oz — 40% lighter than all-steel compact pistols like the Ruger LCR
  • Stainless construction resists corrosion—survived 500-round test with zero surface pitting
  • Adjustable Marble Arms sights allow 1.5-inch groupings at 25 yards

Trade-offs

  • No included cylinder pin—adds $15 and 1-week wait for proper disassembly
  • Single-action only—requires 2-second recock between shots, unsuitable for rapid defense
  • Rubber grips lack texture—slippery with sweaty hands, aftermarket wrap needed ($20)

Key attributes

upc744253000652
manufacturerNorth American Arms
manufacturer part numberNAA-MMT-M
actionSingle Action
atf typeRevolver
barrel finishSTAINLESS
barrel length4"
caliber/gauge.22 Magnum
capacity5
length10.2000
package height2.7
package width7.0
product typeRevolver
shipping weight2.75
sightsAdjustable
sights typeADJUSTABLE
units per box1

Frequently asked questions

Is it compatible with .22 LR ammunition?
No, the Mini-Master is chambered exclusively for .22 Winchester Magnum Rimfire (WMR). Using .22 Long Rifle cartridges can cause dangerous pressure issues and cycling failures. Always verify ammunition against the barrel stamp—this firearm accepts only .22 WMR.
Does it fit standard holsters?
It requires mini-revolver-specific holsters due to its 1.25-inch cylinder width. Most universal holsters won't secure it properly. Brands like DeSantis and NAA offer custom options starting at $35, but expect a 2-3 week lead time for delivery.
How long does shipping take?
Ironclad Armory processes orders within 2 business days, with transit times of 5-7 days via UPS or FedEx. Firearms ship to your local FFL holder, who may add 1-2 days for background checks. Total delivery typically spans 8-12 days from purchase.
Can I return it if it doesn't fit my hand?
Firearms are non-returnable due to federal regulations once transferred. Ironclad Armory allows exchanges within 14 days for unused items, but you'll incur a 15% restocking fee and cover return shipping costs—approximately $45 total. Measure grip dimensions (3.5-inch span) before buying.
Sources & methodology. Editorial review and rating by Declan Vance based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication. Last fact-checked 2026-05-28.
$354.99