Bushmaster Carbon-15 5.56 NATO AR-15 Rifle, 16 inch Barrel, Carbon-Fiber Receivers, Flat-Top Picatinny Rail, Front Gas Block, 1:9 Twist
This Bushmaster Carbon-15 stands out for its lightweight carbon-fiber–reinforced polymer receivers and flat-top upper with an integral Picatinny rail. Ilion, New York receiver markings place production in the 2011–2014 period. It features a 16 inch 5.56 NATO barrel with a 1:9 twist, a threaded muzzle with an A2 flash suppressor, and a front gas block. The bore is clean and bright, and the rifle includes one 30-round Magpul PMAG.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: The rifle shows handling marks from prior use. See photos for details.
What’s Included
- 1x 30-round Magpul PMAG polymer magazine (STANAG pattern)
The Carbon-15 composite upper and lower receivers are a hallmark of this model, delivering significant weight reduction compared to aluminum while maintaining AR-15 compatibility. This example uses a flat-top upper with an integral Picatinny rail, an ejection-port dust cover, and an integral brass deflector.
The 16 inch barrel is marked "5.56 NATO 1/9" and is threaded at the muzzle with an A2 flash suppressor. A front gas block with bayonet lug and a front sling swivel is installed. Barrel and proof markings include "B MP."
Furniture includes a fixed Carbon-15 stock with a side quick-release/takedown lever, an A2 pistol grip, and two-piece ribbed polymer carbine-length handguards. The rifle uses a standard carbine receiver extension.
Operation is semi-automatic with a direct-impingement gas system and a manual safety. It accepts STANAG-pattern magazines and comes with a 30-round Magpul PMAG. The receiver is marked Ilion, New York, aligning this rifle with 2011–2014 production in the USA.




