Bushmaster Carbon-15 9mm Carbine AR-15, 16" Chrome-Moly, Blowback, YHM Quad-Rail and Flip Sights, Vortex Flash Hider, 6x 32-Round Mags
This Bushmaster Carbon-15 9mm Carbine pairs lightweight carbon-fiber–reinforced receivers with a dedicated 9mm AR blowback system and a focused set of quality upgrades. It features a YHM free-float mid-length quad-rail with matching YHM flip sights, a Smith Enterprise Vortex 4-prong flash hider, and a CAA collapsible stock with a saddle. It comes with six 32-round ProMag Colt-pattern magazines and the original Bushmaster manual.
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.
Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Light handling marks with minor, superficial scratches and blemishes are present on exterior surfaces.
What's Included
- Bushmaster Operating and Safety Instruction Manual (original)
- Six 32-round ProMag COL-A3 polymer Colt-pattern 9mm AR magazines
The Carbon-15 receivers are carbon-fiber–reinforced composite to reduce weight. The receiver is marked "BUSHMASTER FIREARMS INC., LAKE HAVASU, AZ, U.S.A." with the Bushmaster serpent logo and "CARBON-15" / "CAL. 9MM NATO." This dedicated 9mm AR configuration uses simple blowback operation. The flat-top upper has an integral Picatinny rail and omits a forward assist and ejection-port cover.
The 16" chrome-moly steel barrel is threaded 1/2x36 and fitted with a Smith Enterprise Vortex 4-prong flash hider. The threaded muzzle supports easy device changes while maintaining the carbine's compact profile.
Handguard and sighting are handled by Yankee Hill Machine components: a YHM-9603 free-float mid-length quad-rail forearm in aluminum, a YHM-9627 forearm-mounted front flip sight, and a YHM-9680 rear flip sight. Low-profile rail covers are installed, including tan panels and OD ERGO low-profile covers, for a clean, snag-resistant grasp on the rails.
Ergonomics and control are enhanced with an OD ERGO ambidextrous SureGrip pistol grip and a CAA collapsible carbine stock equipped with the CAA (TDI) Stock Saddle. A ProMag butt pad is installed on the stock. The carbine uses a 6-position receiver extension, providing an approximate length of pull range from 11 to 14.5 inches. A manual safety is present.
Capacity is noted as 32+1 with a 32-round magazine. This rifle includes six 32-round ProMag COL-A3 polymer Colt-pattern magazines. Manufacturer part number is 90747, and the carbine is made in the United States.




