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Semi-Auto Diamondback

Diamondback is a family-owned American firearms manufacturer based on Florida’s Space Coast, known for precision engineering and in-house production standards. The brand offers a diverse lineup, including rifles built on proven AR platforms, versatile ar ak pistols, and innovative revolvers like the Sidekick, which features both.22LR and.22Mag cylinders for flexible use. Diamondback also supplies high-quality barrels for custom builds and upgrades. Featured products include popular calibers such as 5.56x45 and.223 / 5.56, with models designed for reliability and performance in both recreational and professional settings. Diamondback’s commitment to American manufacturing and quality control ensures every firearm meets rigorous standards. Browse Diamondback to shop performance-driven firearms and components for sale.

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Diamondback DBK1717K005 DB15 AR-15 Platform Rifle, 16" Barrel,1 in 8 Twist, 15" M-Lok Rail, 5.56 Nato, MOE Stock, Grip & 30rd Mag, Black

Diamondback DBK1717K005 DB15 AR-15 Platform Rifle, 16" Barrel,1 in 8 Twist, 15" M-Lok Rail, 5.56 Nato, MOE Stock, Grip & 30rd Mag, Black
$538 00
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Diamondback DB1913K101 Pist ODG 7" SBA3

Diamondback DB1913K101 Pist ODG 7" SBA3

$773 00
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Diamondback DB1916K001 DB15 AR Pistol Carbine Length 10" 30+1 Black SBA3 Pistol Brace Stock

Diamondback DB1916K001 DB15 AR Pistol Carbine Length 10" 30+1 Black SBA3 Pistol Brace Stock

$773 00
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Diamondback Firearms Carbon DB10 Pistol DB1222C002 .308 Win 13.5" 20+1 Semi-Auto Threaded Barrel Black

Diamondback Firearms Carbon DB10 Pistol DB1222C002 .308 Win 13.5" 20+1 Semi-Auto Threaded Barrel Black

$902 69
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Diamondback DB1784K791 DB15 30rd 16" Black Nitride Jungle Green Cerakote 7075-T6 Aluminum Receiver Magpul MOE K2 Grip

Diamondback DB1784K791 DB15 30rd 16" Black Nitride Jungle Green Cerakote 7075-T6 Aluminum Receiver Magpul MOE K2 Grip

$1014 00
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Diamondback DB1629L001 DBX57 BGFB 8" 20+1 Black Hard Coat Anodized Black Magpul MOE-K Grip Side Folding Pistol Brace

Diamondback DB1629L001 DBX57 BGFB 8" 20+1 Black Hard Coat Anodized Black Magpul MOE-K Grip Side Folding Pistol Brace

$1347 00
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Diamondback DB1718T001 DB15 5+1 16", Black, Magpul Carbine Stock & Grip, 12" M-LOK Handgaurd

Diamondback DB1718T001 DB15 5+1 16", Black, Magpul Carbine Stock & Grip, 12" M-LOK Handgaurd

$926 00
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Diamondback DB0100E002 G4 6+1 2" Stainless Steel Barrel, Black Serrated w/Laser Logo Slide, Black Polymer Frame w/Beavertail, Black Polymer Grips

Diamondback DB0100E002 G4 6+1 2" Stainless Steel Barrel, Black Serrated w/Laser Logo Slide, Black Polymer Frame w/Beavertail, Black Polymer Grips

$265 56
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Diamondback DB1418P071 DB15 32+1 16", Midnight Bronze Rec/M-Lok Handgaurd, Carbon Lower, Black Magpul CTR Stock/K2 Grip, Flash Hider

Diamondback DB1418P071 DB15 32+1 16", Midnight Bronze Rec/M-Lok Handgaurd, Carbon Lower, Black Magpul CTR Stock/K2 Grip, Flash Hider

$774 44
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Diamondback DB1784K001 556 DB15 30rd M-LOK Black

Diamondback DB1784K001 556 DB15 30rd M-LOK Black

$967 00
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Diamondback DB1784K061 556 DB15 30rd M-LOK FDE

Diamondback DB1784K061 556 DB15 30rd M-LOK FDE

$1014 00
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Diamondback DB1784K101 556 DB15 30rd M-LOK ODG

Diamondback DB1784K101 556 DB15 30rd M-LOK ODG

$1014 00
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Diamondback Firearms DB10 DB1200W001 Pistol 8.6 Blackout 12" 20+1 Semi-Auto SBA5 Brace Threaded Barrel

Diamondback Firearms DB10 DB1200W001 Pistol 8.6 Blackout 12" 20+1 Semi-Auto SBA5 Brace Threaded Barrel

$1210 00
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Diamondback DB15 DB1889K001 Rifle 5.56 NATO 16" 30+1 Semi-Auto KAC Cold Hammer Forged Barrel, Threaded, Magpul CTR.

Diamondback DB15 DB1889K001 Rifle 5.56 NATO 16" 30+1 Semi-Auto KAC Cold Hammer Forged Barrel, Threaded, Magpul CTR.

$1256 00
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Diamondback DB1984B101 Obsdn Pistol 300 Blackout 10" M-LOK SBA5 ODG 30rd

Diamondback DB1984B101 Obsdn Pistol 300 Blackout 10" M-LOK SBA5 ODG 30rd

$976 67
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Diamondback DB15 Obsidian Pistol DB1984B061 300 Blackout 10" 30+1 Semi-Auto FDE M-LOK SBA5 Threaded Barrel

Diamondback DB15 Obsidian Pistol DB1984B061 300 Blackout 10" 30+1 Semi-Auto FDE M-LOK SBA5 Threaded Barrel

$957 13
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Diamondback Firearms DB15 Obsidian Pistol DB1984B001 Pistol 300 AAC Blackout 10.5" 30+1 Semi-Auto SBA5 Brace M-LOK

Diamondback Firearms DB15 Obsidian Pistol DB1984B001 Pistol 300 AAC Blackout 10.5" 30+1 Semi-Auto SBA5 Brace M-LOK

$914 67
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Diamondback Firearms Carbon DB15 Rifle, Model DB1717K132, Rifle, 5.56 NATO, 16" Barrel, 30+1, Semi-Auto, Brown Cerakote, M-LOK Rail.

Diamondback Firearms Carbon DB15 Rifle, Model DB1717K132, Rifle, 5.56 NATO, 16" Barrel, 30+1, Semi-Auto, Brown Cerakote, M-LOK Rail.
$658 78
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Diamondback DB15 DB1718B002 Rifle, 300 AAC Blackout, 16" Threaded Barrel, 30+1, Semi-Auto, 15" M-LOK Rail, Optics-Ready.

Diamondback DB15 DB1718B002 Rifle, 300 AAC Blackout, 16" Threaded Barrel, 30+1, Semi-Auto, 15" M-LOK Rail, Optics-Ready.

$685 00
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Diamondback DB1718K001 DB15 Carbon 16 M-LOK 15 MOE PR Black 30rd

Diamondback DB1718K001 DB15 Carbon 16 M-LOK 15 MOE PR Black 30rd

$678 00
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Diamondback DB1984K001 Obsidian 30+1 11.50" Black Nitride 11" M-LOK Handguard SBA5 Brace Magpul MOE K2 Grip

Diamondback DB1984K001 Obsidian 30+1 11.50" Black Nitride 11" M-LOK Handguard SBA5 Brace Magpul MOE K2 Grip

$967 00
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Diamondback DB15 Obsidian Series DB1784V001 Rifle 6mm ARC 18" Barrel 26+1 Semi-Auto Magpul CTR 15" M-LOK Threaded Barrel.

Diamondback DB15 Obsidian Series DB1784V001 Rifle 6mm ARC 18" Barrel 26+1 Semi-Auto Magpul CTR 15" M-LOK Threaded Barrel.

$967 00
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Diamondback DB1911SS 1911 45 5" 3 Mags 8rd SS

Diamondback DB1911SS 1911 45 5" 3 Mags 8rd SS

$2550 00
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Diamondback DB1718K061 DB15 5.56 NATO 30+1 16" Flat Dark Earth Cerakote Picatinny Rail Aluminum Receiver

Diamondback DB1718K061 DB15 5.56 NATO 30+1 16" Flat Dark Earth Cerakote Picatinny Rail Aluminum Receiver

$719 00
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