Smith & Wesson M&P15 Sport III 5.56 NATO 16" - AR-15 Rifle

The Smith & Wesson M&P15 Sport III 5.56 NATO 16" delivers everything an AR-15 should — dependable 5.56 NATO function, quality construction, and straightforward ergonomics — without asking you to pay for features you don't need.

The Smith & Wesson M&P15 Sport III 5.56 NATO 16" is a semi-automatic AR-15 rifle chambered in 5.56 NATO, built around mid-length direct impingement operation for reliable cycling on the AR-15 platform.

Reliable Function: A proven mid-length direct impingement operating system cycles a wide range of 5.56 NATO ammunition reliably — the foundation of any dependable AR-15.

Practical Barrel Length: The 16" barrel strikes a practical balance between velocity, maneuverability, and overall weight — a versatile choice for both defensive and recreational use.

Full Aftermarket Compatibility: Standard AR-15 architecture means the full range of aftermarket components, optics, and accessories are available — configure this rifle exactly how you want it.

Durable Construction: Quality materials and a durable finish ensure this platform holds up under regular range use and long-term storage without degrading function or accuracy.

• Caliber: 5.56 NATO
• Barrel Length: 16"
• Gas System: Mid-Length Direct Impingement
• Handguard: 15" M-Lok Free-Float
• Muzzle Threading: 1/2x28
• Magazine Capacity: 10 Round
• Finish: Type III Hardcoat Anodized
• Origin: Made in the USA

Drop-in compatible with mil-spec AR-15 lower receivers. Takes standard STANAG magazines chambered in 5.56 NATO and works with the full range of AR-15 accessories and aftermarket upgrades.

Receivers are machined from 7075 aluminum and finished with Type III Hardcoat Anodized, providing lasting corrosion and wear resistance under regular use and varied environmental conditions.

Equally at home on a training range or in a home defense role. A go-to configuration for shooters who want one dependable AR-15 for multiple applications.

Smith and Wesson has been producing American firearms for over 170 years. The M&P15 series is backed by S&W's lifetime service policy and a track record of reliable performance in the field. Made in the USA.