S&W M&P15 Sport III 5.56 NATO 16in Fixed Stock Rifle

The Smith & Wesson M&P15 Sport III is a semi-automatic modern sporting rifle chambered in .223 Remington/5.56 NATO. It features a 16-inch 4140 steel barrel, fixed synthetic stock, free-floating M-LOK handguard, and a 10-round detachable magazine.

Designed for recreational and sport shooting, this model includes a mid-length gas system, 1:8-inch 5R rifling, full-length Picatinny rail, forward assist, dust cover, and a forged integral trigger guard.

Key Specifications

• The rifle is chambered in .223 Remington/5.56 NATO.
• The semi-automatic action supports practical operation for sport shooting.
• The barrel measures 16 inches and uses a non-threaded muzzle.
• The barrel features a 1:8-inch twist rate with 5R rifling.
• The rifle includes a free-floating 15-inch M-LOK handguard for accessory mounting.
• A full-length Picatinny rail is provided for compatible sight or optic mounting.
• The rifle uses a fixed synthetic stock and polymer grip.
• The detachable magazine has a capacity of 10 rounds, and one magazine is included.
• The receiver is made from 7075 aluminum.
• The listed weight is 6.5 pounds.

With its established M&P platform, fixed-stock configuration, and practical accessory interface, the Sport III offers a straightforward setup for range use and recreational shooting. Its mid-length gas system, durable black finish, and carefully specified barrel features make it a well-equipped choice for shooters who value functional configuration and clear specifications.

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