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Smith & Wesson M&P 15 Sport III 5.56 NATO/.223 Remington Rifle, 16-Inch Barrel, 15-Inch Free-Floating M-LOK Handguard, Mid-Length Gas System, 1:8 Twist, 5R Rifling

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&P 15 Sport III 5.56 NATO/.223 Remington: quick facts

What caliber is the Smith & Wesson M&P 15 Sport III 5.56 NATO/.223 Remington?
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 Nevada?
Yes. It ships to a licensed FFL dealer in Nevada; you pick it up there after the background check. Nevada buyers pick this up at a licensed dealer after a background check, with no permit and no state waiting period; dealers sell rifles and shotguns from age 18.
Is it in stock?
Yes, at $871.11. Orders leave within 1-2 business days; shipping is free over $999.

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