Used Smith & Wesson M&P-15 Sport II S&W 5.56 NATO AR15 AR M&P15 M-LOK +ORIG CASE

Smith & Wesson M&P-15 556 S&W AR15 AR M&P15

How Buying WorksEnding October 14, 2026 at 10:00 PM

Key Features

  • Item Type: Semi Auto Rifles
  • Action: Direct Impingement
  • Manufacturer: Smith & Wesson (S&W)
  • Capacity: 30 1
  • Model: M&P-15
  • Barrel Length: 16"
  • Caliber: 5.56mm NATO
  • Finish: Black
  • Overall Condition: Very Good

Product Description

    Smith & Wesson M&P-15 Sport II Optics-Ready 5.56 NATO, 16" Armornite Barrel, Magpul MOE M-LOK Handguard, Flip-Up Sights, 30+1

    This Smith & Wesson M&P-15 Sport II Optics-Ready stands out with a feature-rich AR-15 configuration and clean, well-kept condition. It pairs a 16-inch Armornite-treated 4140 steel barrel and carbine-length gas system with a flat-top, T-marked Picatinny upper and a gas block rail for flexible sighting and mounting. Magpul MOE M-LOK furniture, installed flip-up sights, and an included windowed PMAG and S&W soft case round out a practical, ready-to-run package.

    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: Light handling marks are present from previous use. Please refer to the photos for close-ups.

    What’s Included
    • Smith & Wesson M&P-branded soft rifle case
    • Flip-up polymer front and rear sights (installed)
    • 2-inch M-LOK Picatinny rail section (installed on handguard)
    • One 30-round windowed Magpul PMAG polymer magazine

    The Sport II Optics-Ready configuration uses a flat-top upper with a T-marked Picatinny rail and a gas block topped with its own Picatinny section, providing versatile mounting for optics and sights. Forward assist, ejection-port dust cover, and a brass deflector are present on the upper receiver.

    The 16-inch barrel is made from 4140 steel, Armornite treated, and threaded at the muzzle, capped with an A2-style birdcage flash hider. Its 1:9 twist rate is suited to common 5.56mm/.223 bullet weights, and the carbine-length gas system maintains standard AR-15 handling characteristics.

    Furniture includes a Magpul MOE M-LOK carbine-length drop-in polymer handguard with M-LOK slots and an installed 2-inch accessory rail section. A 6-position collapsible polymer stock and A2-style pistol grip provide a familiar AR-15 control layout.

    The rifle is built on 7075-T6 aluminum receivers with a hard-coat anodized finish, and features a manual safety selector. It uses the STANAG-pattern magazine interface with a 30+1 capacity and comes with a windowed Magpul PMAG. Made in the United States.

Specifications

Item TypeSemi Auto Rifles
ManufacturerSmith & Wesson (S&W)
ModelM&P-15
SubmodelSport II Optics-Ready
Caliber5.56mm NATO
Overall ConditionVery Good
Bore ConditionExcellent
ActionDirect Impingement
Capacity30 1
Barrel Length16"
FinishBlack
Stock/GripsA2-style pistol grip
Sight/Opticflip-up polymer sights
Country of OriginUnited States