Smith & Wesson M&P15 Sport II 5.56 NATO Semi-Auto AR-15, 16 in Barrel, A2 Front Sight, 1:9 Twist, Matte Black
The Smith & Wesson M&P15 Sport II is a well-maintained 5.56 NATO AR-15 with a 16-inch barrel, carbine-length gas system, and classic A2 sight configuration. It features a flat-top Picatinny upper with forward assist and ejection-port cover, a pinned A2 front sight base with bayonet lug, and a 1:9 twist rate. This example includes a polymer flip-up rear sight and a 30-round Magpul PMAG, all in a durable matte black finish and U.S.-made construction.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: The firearm and bore have been maintained in excellent condition.
What’s Included
- Polymer flip-up rear sight (installed)
- One 30-round Magpul PMAG polymer magazine
Built on the AR-15 platform, the M&P15 Sport II uses a direct impingement operating system with a carbine-length gas setup. The upper receiver is a flat-top Picatinny design and includes a forward assist and ejection-port cover for added practicality. The aluminum-alloy receivers wear a uniform matte black finish.
The 16-inch barrel is threaded and capped with an A2 birdcage flash suppressor. A pinned A2 front sight base with bayonet lug provides a robust front sighting reference, paired with the included polymer flip-up rear sight. The 1:9 twist rate supports a broad range of 5.56 NATO use cases.
Furniture includes a carbine-length, two-piece polymer handguard and an A2-style pistol grip. The M4-style 6-position collapsible stock features a sling loop and provides an adjustable length of pull of approximately 10 to 13.5 inches, allowing a straightforward fit across different shooters and setups.
This rifle accepts STANAG-pattern magazines and has a listed capacity of 30+1. A manual safety is provided. The package includes a 30-round Magpul PMAG, making it ready for range use with commonly available 5.56 NATO/223 Rem ammunition.

