Description
There's a reason the M&P15-22 has been the go-to rimfire AR for years. It mirrors the layout, controls, and feel of a full-size AR while running cheap, mild .22 LR, which makes it perfect for keeping your fundamentals sharp without burning through centerfire ammo. This Sport model, part number 14180, steps things up with a B5 Systems Bravo adjustable stock and Type 23 grip, the same furniture you'll find on plenty of serious duty rifles. At around 4.6 pounds, it's light enough for new and smaller-framed folks to handle comfortably, and the near-zero recoil means longer, more enjoyable range days for everyone.
Built Like an AR, Feeds Like a Rimfire
The 16.5 inch carbon steel barrel wears a 1/2×28 threaded muzzle with an A2 birdcage flash hider, and the 10 inch slim handguard carries M-LOK slots so lights, hand stops, and rail sections bolt on without pulling anything apart. Up top, a full-length Picatinny rail on the polymer receiver handles red dots and scopes, while the included Magpul MBUS front and rear flip-up sights give you a solid aiming solution from day one. The six-position stock adjusts overall length from 30.5 to 33.8 inches, so it fits shooters of just about any size. Because the platform accepts most standard AR-15 grips, stocks, and accessories, you can set it up to match your centerfire rifle almost exactly.
Why the M&P15-22 Sport Earns Its Keep
The simple blowback action has a well-earned reputation for running reliably on quality high-velocity ammo, and the 25-round magazine keeps you shooting instead of reloading. Whether you're teaching a new shooter the AR platform, running low-cost drills that translate directly to your 5.56 rifle, plinking steel on a lazy afternoon, or chasing small game, this thing just works. It's one of those rifles that ends up getting shot more than anything else in the safe, and with rimfire ammo prices being what they are, that's an easy habit to keep up.
Key Specifications
- Manufacturer Part Number: 14180
- UPC: 022188898248
- Model: M&P15-22 Sport
- Caliber: .22 LR
- Action: Semi-Auto (Blowback)
- Capacity: 25+1
- Barrel Length: 16.5"
- Barrel Material: Carbon Steel
- Twist Rate: 1:15"
- Thread Pattern: 1/2"x28
- Muzzle Device: A2 Birdcage Flash Suppressor
- Stock: B5 Systems Bravo, Adjustable
- Grip: B5 Type 23
- Handguard: 10" M&P Slim with M-LOK Slots
- Sights: Magpul MBUS Folding Front & Rear
- Overall Length / Weight: 30.5" – 33.8" / 4.59 lbs
What’s Included
- Smith & Wesson M&P15-22 Sport rifle
- One 25-round magazine
- Magpul MBUS front and rear folding sights (installed)
- Owner's manual
Frequently Asked Questions
Will standard AR-15 accessories fit the M&P15-22 Sport?
For the most part, yes. The 15-22 is compatible with most standard AR-15 grips, stocks, and rail-mounted accessories, and this model already wears B5 Systems furniture from the factory. The M-LOK handguard and Picatinny top rail accept the same lights, optics, and accessories you'd run on a centerfire AR. Just note the bolt and some internal parts are rimfire-specific, so it's not a parts-swap situation inside the receiver.
Can I put a suppressor on the M&P15-22 Sport?
The barrel comes threaded 1/2×28 with an A2 flash hider installed, which is the standard thread pitch for most rimfire suppressors. Remove the flash hider and a can threads right on. A suppressed 15-22 with subsonic ammo is about as quiet and fun as rimfire shooting gets.
Is the M&P15-22 reliable with all .22 LR ammo?
Like most semi-auto rimfires, it runs best on quality high-velocity ammo in the 36 to 40 grain range. Bulk high-velocity loads from the major makers cycle the blowback action dependably. Standard velocity and subsonic loads may not cycle consistently unless you're running a suppressor, which is typical for the platform.
Is this a good rifle for teaching a new shooter?
It's one of the best options out there for exactly that. The mild recoil and quiet report of .22 LR keep new shooters comfortable, while the adjustable B5 stock fits smaller frames. Since the controls match a full-size AR, the skills learned on this rifle carry straight over to centerfire later on.





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