Bushmaster Carbon-15 Flat-Top Carbine 5.56 NATO, 16 inch Chrome-Lined Barrel, Carbon-Fiber-Reinforced Polymer Receivers
This Bushmaster Carbon-15 Flat-Top Carbine stands out for its lightweight carbon-fiber–reinforced polymer receivers paired with a durable 16 inch 4150 chrome-moly, chrome-lined barrel in 5.56 NATO. It features a flat-top receiver with a full-length Picatinny rail, a low-profile gas block without a fixed front sight, and an Ilion, NY rollmark. The barrel is stamped "B MP 5.56 NATO 1/9," indicating magnetic particle inspection and a 1:9 twist.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Overall Condition: Good - Clean, well-maintained, minor wear marks.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: The firearm presents minor scratches and small blemishes from prior handling. The bore appears clean and shiny.
What's Included
- 1x 30-round Thermold polymer AR-15 magazine
The Carbon-15 series uses carbon-fiber–reinforced polymer for both upper and lower receivers, reducing weight while maintaining AR-15 platform compatibility. It includes an ejection-port dust cover and a STANAG-pattern magazine well for standard AR-15 magazines.
The 16 inch barrel is 4150 chrome-moly steel, chrome-lined, and threaded with an A2 birdcage flash hider. The "B MP 5.56 NATO 1/9" stamp denotes Bushmaster magnetic particle inspection and a 1:9 twist suited to a wide range of 5.56 NATO loads.
A flat-top receiver with a full-length Picatinny rail provides a clean upper with no fixed sights, matched by a low-profile gas block with sling swivel. Carbine-length, two-piece polymer handguards offer a familiar, durable interface.
The carbine uses a semi-automatic, direct-impingement action with a manual safety. Furniture includes a 6-position telescoping stock and an A2-style pistol grip. Capacity is 30+1, and this rifle bears the Ilion, NY rollmark, reflecting U.S. manufacture.