Smith & Wesson M&P15 Sport II 5.56 NATO AR-15, 16 in Armornite Barrel, A2 Front Sight, Flip-Up Rear, 4x 30-Rd Mags
This Smith & Wesson M&P15 Sport II stands out with its 16 in 4140 steel barrel treated with S&W's Armornite nitride finish and a carbine-length gas system. The flat-top upper has a T-marked Picatinny rail, and the rifle retains the classic pinned A2 front sight base paired with a polymer flip-up rear sight. It is in excellent condition with a mirror-bright bore and includes four 30-round magazines. An aftermarket stylized early U.S. flag decal on the right side of the magwell adds a distinctive visual element specific to this rifle.
The receivers are 7075-T6 aluminum with a hard-coat anodized finish. The upper includes a forward assist and an ejection-port dust cover, and the rail is marked T4 through T12 with an "-S&W-" index. Controls include a manual safety selector.
The 16 in barrel is threaded and fitted with an A2 flash suppressor. It is marked "5.56 NATO 1/9" and uses a 1:9 RH twist. The gas system is carbine-length for standard carbine handguard fitment.
Furniture includes two-piece ribbed polymer carbine handguards, an A2-type pistol grip, and a six-position collapsible polymer buttstock with a molded S&W medallion. The fixed A2 front sight base has a bayonet lug and a front sling loop, and the rear sight is a polymer flip-up design.
Markings include "SMITH & WESSON, SPRINGFIELD, MA, MADE IN U.S.A." Capacity is 30+1 with compatible magazines.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Shows a few faint handling marks consistent with light prior use. Please see the photos for a close look at surfaces and markings.
What’s Included
- Smith & Wesson M&P15 Sport II rifle (5.56mm NATO)
- 4x 30-round magazines (mix includes a Magpul PMAG polymer magazine and aluminum USGI-pattern mags)
The flat-top upper receiver provides a T-marked Picatinny rail from T4 to T12 for precise reference, and the "-S&W-" index is present. The forward assist and ejection-port dust cover are both installed, matching the Sport II configuration noted here.
The pinned A2 front sight base includes a bayonet lug and front sling loop for standard accessories compatible with this style of base. The rear sight is a polymer flip-up unit that pairs with the fixed front for immediate use.
Construction emphasizes durability with 7075-T6 aluminum receivers in a hard-coat anodized finish and a 4140 steel barrel treated with Armornite. The threaded muzzle accepts the installed A2 flash suppressor.
Ergonomics and adjustability come from the six-position collapsible stock and A2-type pistol grip, while the two-piece ribbed polymer carbine handguards complete the classic AR-15 carbine layout. Length of pull is listed at 10.5 in.
Additional details unique to this example include the aftermarket stylized early U.S. flag decal on the right side of the magwell and factory markings indicating manufacture in the United States.




