The Smith & Wesson M&P15 Sport III is an AR-pattern semi-automatic rifle chambered in 223 Remington/5.56 NATO with a 16-inch threaded barrel and an M-Lok handguard. It includes a Crimson Trace red dot sight and has a black stock and receiver. Capacity is 10 rounds. 
 

Key Specifications 

• Brand: Smith & Wesson 
• Model: M&P15 Sport III 
• Caliber: 5.56 NATO 
• Action: Semi Auto 
• Capacity: 10 
• Barrel Length: 16 inches 
• Color/Finish: Black 
   

Detailed Features 

• 16-inch threaded barrel accepting standard muzzle devices 
• M-Lok handguard for accessory mounting 
• Crimson Trace red dot sight included in the package 
• Black polymer stock and receiver furniture 
• 10-round capacity configuration

Owners of the M&P15 Sport III generally find it a competent AR-pattern rifle with the convenience of an included red dot. The Crimson Trace optic is polarizing: some are glad to skip a separate sight purchase, while others swap it for a preferred optic immediately and consider the bundle pricing the real value over a bare-rifle configuration.

The M-Lok handguard is consistently praised for allowing lights, grips, and other accessories without buying an aftermarket rail. The 16-inch threaded barrel is a practical touch. Build quality is in line with what Smith & Wesson buyers expect from the M&P15 line, with most owners reporting reliable cycling across a range of ammunition.

The 10-round capacity is a defining characteristic of this particular variant, aimed at state-compliant markets. Buyers outside those markets typically note the magazine situation as a limitation to consider, while those in capacity-restricted states find the package a straightforward ready-to-run option.