Description
The M&P22 Compact is one of those pistols that just makes sense. It carries the ergonomics and familiar controls of the M&P family in a package that's light, easy to shoot, and genuinely enjoyable to run at the range. Unlike the original full-size M&P22, this Compact was designed and manufactured entirely in-house at Smith & Wesson's Springfield, Massachusetts facility. That matters. The internals were completely redesigned from the ground up, with reliability across a wide range of .22 LR ammunition as a primary engineering goal.
What Makes the M&P22 Compact Different
The action is a straight blowback, single-action design with an internal hammer rather than a striker. The barrel is fixed to the frame and threaded at 3/8"-24 tpi, which means it's suppressor-ready from the factory. A thread protector cap sits flush with the slide when the pistol is in battery, so you'd barely know the threads were there unless you went looking. If you want to run a suppressor, you'll need an adapter to convert to the more common 1/2"-28 thread standard used by most .22 LR cans. The hard-anodized 7075 aluminum slide keeps the weight low without making the gun feel cheap, and the polymer frame is solid with a built-in Picatinny-style rail for lights or lasers.
M&P22 Compact Sights, Safety, and Controls
Sights are a white dot front and a screw-adjustable two-dot rear, which gives you actual windage and elevation correction at the range rather than a fixed sight you have to work around. The ambidextrous thumb safety is well-placed and easy to run, and the magazine release is reversible for left-handed use. There's also a magazine disconnect safety and a visual loaded chamber indicator on top of the slide. Field stripping breaks down cleanly into three main pieces, which makes cleaning after a range session straightforward. Two 10-round magazines come included.
This pistol fits a wide range of hand sizes comfortably, and the 3.56" barrel gives you a decent sight radius without making the gun feel oversized. It's been a go-to training tool for people who want to get more trigger time on an M&P-platform layout without the cost of centerfire ammo. Whether you're building fundamentals, introducing a newer shooter, or just having a good time at the range, the M&P22 Compact earns its place.
Key Specifications
- Manufacturer: Smith & Wesson
- MPN: 108390
- UPC: 022188083903
- Caliber: .22 LR
- Action: Semi-Automatic, Blowback, Single-Action
- Barrel Length: 3.56"
- Thread Pattern: 3/8"-24 tpi
- Overall Length: 6.65"
- Height: 5.03"
- Width: 1.48"
- Weight: 15.3 oz
- Capacity: 10+1
- Frame Material: Polymer
- Slide Material: Hard-Anodized 7075 Aluminum (Armornite Finish)
- Sights: White Dot Front, Screw-Adjustable White 2-Dot Rear
- Safety: Ambidextrous Manual Thumb Safety, Trigger Safety, Magazine Disconnect, Internal Lock
- Magazines Included: 2 x 10-Round
- Country of Origin: USA
What’s Included
- Smith & Wesson M&P22 Compact Pistol
- 2 x 10-Round Magazines
- Thread Protector Cap (installed)
- Internal Lock Key
- Owner's Manual
Frequently Asked Questions
Does the M&P22 Compact have a threaded barrel from the factory?
Yes, the barrel is threaded at 3/8"-24 tpi right out of the box. A thread protector cap is installed and sits flush with the slide when in battery, so it's easy to miss if you don't know to look for it. To run a standard .22 LR suppressor, you'll need a thread adapter to convert to 1/2"-28, since most cans use that pitch.
Is the M&P22 Compact made by Walther like the original full-size M&P22?
No, this is an important distinction. The original full-size M&P22 was produced by Walther under a licensing arrangement, but the M&P22 Compact was designed and built entirely in-house by Smith & Wesson in Springfield, Massachusetts. The internals were completely redesigned, and it's a 100% American-made firearm.
What type of .22 LR ammo works best in the M&P22 Compact?
Like most .22 semi-autos, this pistol tends to run most reliably with standard or high-velocity 40-grain loads. Subsonic and bulk budget ammo can sometimes cause feeding or extraction issues, especially before the gun is broken in. CCI Mini-Mags, Winchester Super-Speed, and similar high-velocity rounds are popular choices. Keeping the pistol clean also goes a long way toward keeping it running smoothly.
How does the M&P22 Compact compare in size to the M&P Shield?
The M&P22 Compact is scaled 15% smaller than the full-size M&P22, which puts it in a similar size neighborhood to the single-stack M&P Shield. It's noticeably more compact than a full-size M&P, and at 15.3 ounces it's actually a bit lighter than the Shield. The grip length is long enough for most shooters to get a full three-finger hold.
Is the M&P22 Compact a good pistol for a newer shooter or for training purposes?
It's a genuinely solid choice for both. The low recoil of .22 LR makes it approachable for new shooters, and the M&P-style controls, ambidextrous safety, and reversible mag release mirror what you'd find on centerfire M&P pistols. That makes it a useful training companion for anyone already running an M&P platform gun. The adjustable rear sight is a nice bonus that lets you dial in your point of impact.
Does the M&P22 Compact come with an optics rail?
Yes, the frame features a Picatinny-style accessory rail under the dust cover, which is compatible with compact lights and laser sights designed for that footprint. There is no optic cut on the slide for a red dot on this model, so the primary sighting system is the adjustable white-dot iron sights.





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