Smith & Wesson M&P-15 5.56 NATO 16 in Carbine, Direct Impingement, 1:9 Twist, Non-Threaded Crowned Muzzle
This Smith & Wesson M&P-15 stands out with its 16 inch 1:9 twist barrel capped by a non-threaded, crowned muzzle, a pinned A2 front sight base, and a flat-top upper with T-markings for precise rail reference. It includes a Magpul MBUS rear sight and a Magpul PMAG Gen M3 30-round magazine. The rifle features a carbine-length gas system, polymer carbine handguards, and a 6-position M4-style stock with an S&W medallion, all made in the United States.
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 Details: There are small handling marks visible on exterior surfaces and light rubs on the polymer furniture.
What’s Included
- Smith & Wesson M&P-15 5.56 NATO rifle
- 1x 30-round Magpul PMAG Gen M3 STANAG-pattern magazine (5.56x45)
- Magpul MBUS polymer flip-up rear sight (installed)
The M&P-15 uses a gas-operated, direct-impingement system with a rotating bolt and a carbine-length gas system. The upper receiver is a flat-top Picatinny design with T-markings (T4–T12) for repeatable accessory placement, and it includes a dust cover and forward assist. Receiver markings read "SMITH & WESSON SPRINGFIELD, MA MADE IN U.S.A."
The 16 inch barrel features a 1:9 twist to stabilize a wide range of 5.56/.223 loads. Its non-threaded, crowned muzzle is configured for clean lines and straightforward maintenance. A pinned A2-pattern front sight base with an integral sling swivel provides a durable front sight reference.
Furniture includes a two-piece ribbed carbine-length polymer handguard, an A2-style polymer pistol grip, and a 6-position M4-style collapsible stock with an S&W medallion. The length of pull measures 13.5 inches, offering quick adjustment to the shooter or shooting position.
Sighting is handled by the A2 front sight base paired with an installed Magpul MBUS polymer flip-up rear sight. The rifle accepts STANAG-pattern magazines and ships with a Magpul PMAG Gen M3. Controls include a right-side magazine release and a selector safety, with a 30+1 capacity in 5.56mm NATO.