The Diamondback DB15 5.56 NATO AR Pistol Carbon Series is a semi-automatic AR-pattern pistol featuring a 10″ heavy barrel chambered in 5.56 NATO and compatible with .223 Remington ammunition. The configuration includes a free-float 9″ M-LOK rail with anti-rotation design and flat-top upper receiver for optic mounting.
The barrel features a 1:8 right-hand twist and is threaded 1/2×28 for muzzle device compatibility. Upper and lower receivers are forged 7075-T6 aluminum with Carbon Series enhancements and a black Cerakote finish.
This configuration includes a pistol stabilizing brace and a 30-round detachable magazine. The system is engineered for reliable cycling and supports accurate performance within compact barrel parameters.
Key Features:
• Caliber: 5.56 NATO / .223 Remington
• Barrel Length: 10″
• Twist Rate: 1:8 RH
• Thread Pattern: 1/2×28
• Operating System: Direct impingement
• Receiver Material: Forged 7075-T6 aluminum
• Handguard: Free-float 9″ M-LOK
• Capacity: 30 rounds
• Brace: Pistol stabilizing brace
• Finish: Black Cerakote
Manufacturer Specifications:
Manufacturer: Diamondback Firearms
Model: DB15 Carbon Series AR Pistol
Caliber: 5.56 NATO
Barrel Length: 10″
Twist Rate: 1:8 RH
Thread Pitch: 1/2×28
Action: Semi-automatic
Operating System: Direct impingement
Handguard: Free-float 9″ M-LOK
Brace: Pistol stabilizing brace
Finish: Black Cerakote
FAQ:
Q: What caliber does this pistol use?
A: 5.56 NATO and .223 Remington compatible.
Q: What is the twist rate of the barrel?
A: 1 turn in 8 inches.
Q: What type of handguard is fitted?
A: Free-float 9″ M-LOK rail.
Brought to you by Black Bayou Armory.






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