The Diamondback DB10-12 300 BLK AR Pistol is a semi-automatic AR-pattern firearm featuring an 8.6″ barrel chambered in 300 AAC Blackout and compatible with subsonic and supersonic ammunition. Diamondback designs this configuration with an 11″ V3 M-LOK anti-rotation handguard and a flat-top upper receiver for optic mounting.
The barrel features a 1:8 twist rate and is threaded 5/8×24 for muzzle device compatibility. Receivers are forged 7075-T6 aluminum with a black Cerakote finish. This configuration includes a pistol stabilizing brace and a 30-round detachable magazine. System engineering provides reliable cycling and supports accurate performance within compact barrel parameters.
Key Features:
• Caliber: 300 AAC Blackout
• Barrel Length: 8.6″
• Twist Rate: 1:8 RH
• Thread Pattern: 5/8×24
• Operating System: Direct impingement
• Receiver Material: Forged 7075-T6 aluminum
• Handguard: 11″ V3 M-LOK anti-rotation rail
• Capacity: 30 rounds
• Configuration: AR-pattern pistol with stabilizing brace
• Finish: Black Cerakote
Manufacturer Specifications:
Manufacturer: Diamondback Firearms
Model: DB10-12 Pistol
Caliber: 300 AAC Blackout
Barrel Length: 8.6″
Twist Rate: 1:8 RH
Thread Pitch: 5/8×24
Action: Semi-automatic
Operating System: Direct impingement
Handguard: 11″ V3 M-LOK anti-rotation
Brace: Pistol stabilizing brace
Finish: Black Cerakote
FAQ:
Q: What caliber does this pistol use?
A: 300 AAC Blackout.
Q: What is the barrel thread pattern?
A: 5/8×24.
Q: Does it include a stabilizing brace?
A: Yes, it is equipped with a pistol stabilizing brace.
Brought to you by Black Bayou Armory.






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