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Smith & Wesson M&P15 Sport III Free-Floating M-LOK 5.56 NATO Blue/Black Rifle

The Smith & Wesson M&P15 Sport III is a lightweight semi-automatic rifle chambered in 5.56 NATO and designed for recreation, sport shooting, training, and professional applications. Its 16-inch Armornite-finished barrel uses 5R rifling with a 1:8 twist and pairs with a mid-length gas system for smooth cycling and reduced felt recoil. A free-floating 15-inch M-LOK handguard provides a versatile mounting platform for accessories, while the forged integral trigger guard, forward assist, dust cover, and chromed firing pin support dependable operation.

Key features

  • 5.56 NATO chambering with 30+1 capacity for versatile range and sporting use
  • 16-inch 5R rifled barrel with a 1:8 twist for consistent projectile engagement
  • Mid-length gas system helps reduce felt recoil and supports reliable cycling
  • 15-inch free-floating M-LOK handguard offers flexible accessory mounting
  • Armornite-finished barrel, chromed firing pin, forward assist, and dust cover
  • Adjustable stock supports a more adaptable length of pull

The M&P15 Sport III combines a practical 5.56 NATO configuration with modern accessory compatibility for a broad range of shooting applications.

Smith & Wesson M&P15 Sport III Free-Floating M-LOK 5.56: quick facts

What caliber is the Smith & Wesson M&P15 Sport III Free-Floating M-LOK 5.56?
It is chambered in 5.56 NATO.
How many rounds does it hold?
30+1 rounds; magazines included: 1.
How big and heavy is it?
Barrel length 16 inches, overall length 35 inches, weight 6.45 pounds.
What kind of action does it use?
Semi-Automatic.
Is it optic ready or threaded?
Optic ready: Yes; threaded barrel: Yes.
What sights and finish does it have?
Sights: Standard Sights; finish: Blue/Black.
Is it new or used?
New, in the original packaging.
Can I buy it in Connecticut?
Yes. It ships to a licensed FFL dealer in Connecticut; you pick it up there after the background check. Connecticut buyers need a Long Gun Eligibility Certificate or pistol permit, and the Connecticut dealer will only transfer rifles and shotguns that are legal under the state's assault weapon law.
Is it in stock?
Yes, at $871.11. Orders leave within 1-2 business days; shipping is free over $999.

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