The Smith & Wesson M&P15-22 Sport is a .22 LR semi-auto rifle built on an AR-style platform. The 16.5-inch barrel, 25+1 capacity, and 4.59 lb weight make it a practical option for new shooters learning on an AR layout and for experienced shooters who want a low-cost training platform. The B5 Bravo adjustable stock and Magpul MBUS folding sights come standard. 
 

Key Specifications 

• Brand: Smith & Wesson 
• Model: M&P15-22 Sport B5 
• Caliber: .22 LR 
• Action: Semi-Auto 
• Barrel Length: 16.5 inches 
• Overall Length: 30.50" - 33.80" 
• Capacity: 25+1 rounds 
• Weight: 4.59 lbs 
• Finish: Black (Stock Finish: Polymer) 
• Sights: Magpul MBUS Front & Rear 
• Muzzle Device: A2 Birdcage Flash Suppressor 
   

Detailed Features 

The B5 Bravo collapsible stock adjusts for different shooter sizes and shooting positions, covering a length range of 30.50 to 33.80 inches overall. Magpul MBUS sights fold flat when not in use and flip up quickly when needed. The Picatinny rail on the receiver accepts optics and accessories. The A2 birdcage flash suppressor keeps the muzzle signature manageable. At 4.59 lbs, the rifle is noticeably light even among AR-pattern rifles. 
 

Target Audience 

New shooters who want an AR-format rifle without centerfire recoil, competitive rimfire shooters, and anyone who wants an inexpensive .22 LR trainer that controls and handles like a standard AR-15. 
 

Usage Scenarios 

1. Sport shooting competitions: 25+1 capacity and semi-auto action suit timed rimfire events. 
2. Range training: manageable recoil and familiar AR controls build good technique. 
3. Casual plinking: low ammunition cost makes extended sessions practical.

The Smith & Wesson M&P15-22 Sport gets strong positive reviews from a broad range of shooters.

The AR-style layout is the central selling point. Owners who also shoot AR-15s appreciate that controls, manual of arms, and the overall handling experience carry over almost entirely. This makes the rifle genuinely useful as a training tool rather than just a fun rimfire.

Accuracy and reliability are consistently praised. Users report minimal malfunctions with quality ammunition, and the rifle produces consistent results at typical rimfire distances.

Low recoil is frequently highlighted, particularly by new shooters and instructors. It allows beginners to focus on technique without being distracted by felt recoil, and it keeps training sessions comfortable.

Ammunition cost is a regular positive. Shooting .22 LR versus centerfire ammunition allows for significantly more rounds per dollar, which most owners note directly.

A small number of users raise concerns about durability under heavy use or harsh conditions compared to a full-caliber AR, though these comments are a minority.

Magazine compatibility and occasional feeding issues with specific .22 LR loads come up occasionally. Quality ammunition appears to resolve most feeding problems.