Description
Thirty one rounds of 22 Magnum before you touch a spare mag. That number alone is what draws most people to the M&P 22 Magnum, and it delivers on the promise. Smith & Wesson built this full-size pistol around their TEMPO barrel system, the same gas-operated, locked-breech design found on the M&P 5.7. A front gas port keeps the barrel locked up until the bullet passes it, which translates to consistent cycling and better accuracy than you would expect from a rimfire semi-auto. It is an internal hammer-fired gun with a crisp, flat-face trigger that makes repeatable finger placement easy.
Ready for a Red Dot from Day One
The slide comes cut for direct mounting most popular micro red dots, so there is no hunting down adapter plates before your first range trip. Prefer irons? The green fiber optic front sight paired with a black notched rear gives you a bright, clean sight picture even in dim light. There is also a Picatinny-style rail up front for a light or laser, plus an ambidextrous slide stop, manual thumb safety, and reversible magazine release for lefties.
Why the M&P 22 Magnum Earns Its Range Time
At just 22 ounces with a slim, textured polymer grip, this pistol handles like a service gun without the service-gun recoil. The 4.35 inch stainless steel barrel with its 1:10 twist gets impressive velocity out of 22 WMR, and the easy-racking slide makes it a great fit for newer or recoil-sensitive folks who still want something with more pop than a 22 LR. It has become a favorite for plinking, small game and pest work, and trail carry where weight matters.
What Ships with the S&W M&P 22 Magnum
Smith & Wesson includes two 30-round magazines in the box, so you can keep one topped off while you run the other dry. Like it does with 22 rimfires in general, quality ammo matters here, and CCI Maxi-Mag and similar loads tend to run great in this platform. The whole package is made in the USA and backed by Smith & Wesson's lifetime service policy.
Key Specifications
- Manufacturer: Smith & Wesson
- Manufacturer Part Number: 13433
- UPC: 022188892932
- Caliber: .22 WMR (22 Magnum)
- Capacity: 30+1
- Action: Internal Hammer-Fired, Gas-Operated (TEMPO Locked-Breech Barrel System)
- Barrel Length: 4.35"
- Barrel Material: Stainless Steel, 1:10 Twist
- Overall Length: 8.4"
- Height: 5.9"
- Width: 1.13"
- Weight: 22 oz
- Frame: Black Polymer with Picatinny-Style Rail
- Sights: Green Fiber Optic Front, Black Notched Rear
- Optic Ready: Yes, Direct Mount for Most Micro Red Dots
- Safety: Manual Thumb Safety, Ambidextrous Slide Stop, Reversible Mag Release
What’s Included
- Smith & Wesson M&P 22 Magnum pistol
- Two 30-round magazines
- Cable lock
- Owner's manual
Frequently Asked Questions
What red dots fit the M&P 22 Magnum optic cut?
The slide is cut for direct mounting of most popular micro red dots using the RMSc-style footprint, often called the Holosun K footprint. Optics like the Holosun 407K and 507K bolt straight on without adapter plates. Just note that with an optic mounted, the factory iron sights typically will not co-witness.
Is the M&P 22 Magnum striker fired or hammer fired?
It uses an internal hammer-fired action paired with Smith & Wesson's gas-operated, locked-breech TEMPO barrel system. The barrel stays locked until the bullet passes a front gas port, which helps the pistol cycle consistently and squeeze solid accuracy out of the 22 WMR cartridge. The flat-face trigger breaks with a crisp, single-action feel.
What ammo runs best in the Smith & Wesson M&P 22 Magnum?
Owners consistently report the best results with quality 22 WMR loads like CCI Maxi-Mag and Hornady Critical Defense. As with any rimfire semi-auto, bargain-bin ammo can cause hiccups, so stick with reputable brands and give the pistol a proper break-in. Bullet weights from 30 to 45 grains cycle well in this platform.
Does the M&P 22 Magnum come with two magazines?
Yes, this model ships with two 30-round magazines from the factory. That gives you 60 rounds loaded and ready between reloads, which is a big part of what makes this pistol such a blast at the range. Spare factory magazines are available if you want to keep even more on hand.





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