We may get paid by partner for deals, including promoted items

Sponsored

OpticsPlanet use Code: GEARCHASE Amazon - Lightning Deals Amazon - Hunting Deals Bike Racks Heated Clothing Stio Hoka Fishing Mountain Hardwear

Diamondback DB Barrel .300 AAC Blackout 10 Barrel Pistol-Length by Diamondback -

6% off

Product Description

Get the best deal on the Diamondback DB Barrel 300P10H50B8R .300 AAC Blackout 10 AR Barrels at GrabAGun.com. Get the best deals on AR Barrels for sale online at GrabAGun! Diamondback for sale online. Flat rate shipping on all guns and ammo with the best p

Diamondback DB Barrel .300 AAC Blackout 10 Barrel Pistol-Length

at GrabAGun

Browse all GrabAGun deals

$90.69 $96.00 6% Discount

You save $5.31

In Stock at GrabAGun

Price verified 3d ago

Buy Now at GrabAGun

Secure checkout Easy returns

or compare prices

Product Details

Brand Diamondback

More from Diamondback

Last Updated:

Aug 30, 2026 01:52 AM

Diamondback DB15 Knight's Armament Black 5.56 NATO 16" Chrome Lined AR-15 Rifle

Diamondback DB15 Knight's Armament Black 5.56 NATO 16" Chrome Lined AR-15 Rifle View Details

$1330.86 $1514.80

12% off

Buy Now · $1330.86

Last Updated:

Aug 30, 2026 01:52 AM

Diamondback DB10 Carbon Lower 13" M-LOK .308 Win 20+1 13.5" AR-10 Pistol

Diamondback DB10 Carbon Lower 13" M-LOK .308 Win 20+1 13.5" AR-10 Pistol View Details

$928.87 $1057.25

12% off

Buy Now · $928.87

Last Updated:

Aug 30, 2026 01:52 AM

Diamondback DB15 Black Gold Lower 5.56x45mm NATO 16" AR-15 Rifle

Diamondback DB15 Black Gold Lower 5.56x45mm NATO 16" AR-15 Rifle View Details

$912.60 $1038.73

12% off

Buy Now · $912.60

Last Updated:

Aug 30, 2026 01:52 AM

Diamondback DB15 Black Gold Lower 5.56x45mm 30+1 16" M-LOK AR-15 Rifle

Diamondback DB15 Black Gold Lower 5.56x45mm 30+1 16" M-LOK AR-15 Rifle View Details

$863.46 $982.80

12% off

Buy Now · $863.46

Last Updated:

Aug 30, 2026 01:52 AM

Diamondback DB15 Black 7.62x39mm 16-inch Rifle

Diamondback DB15 Black 7.62x39mm 16-inch Rifle View Details

$762.60 $868.00

12% off

Buy Now · $762.60

Last Updated:

Aug 30, 2026 01:52 AM

Diamondback DB15 Black Cerakote M-LOK 223 Wylde 30+1 18" AR-15 Rifle

Diamondback DB15 Black Cerakote M-LOK 223 Wylde 30+1 18" AR-15 Rifle View Details

$749.07 $852.60

12% off

Buy Now · $749.07

Last Updated:

Aug 30, 2026 01:52 AM

Diamondback DB15 Midnight Bronze 5.56x45mm NATO 30+1 7" Pistol

Diamondback DB15 Midnight Bronze 5.56x45mm NATO 30+1 7" Pistol View Details

$715.86 $814.80

12% off

Buy Now · $715.86

Last Updated:

Aug 30, 2026 01:52 AM

Diamondback DB15 Black/Prison Pink Carbon Lower 5.56x45mm NATO 16" AR-15 Rifle

Diamondback DB15 Black/Prison Pink Carbon Lower 5.56x45mm NATO 16" AR-15 Rifle View Details

$608.85 $693.00

12% off

Buy Now · $608.85

Last Updated:

Aug 30, 2026 01:52 AM

Diamondback DB15 Black Magpul M-LOK 5.56x45mm NATO 30+1 16" AR-15 Rifle

Diamondback DB15 Black Magpul M-LOK 5.56x45mm NATO 30+1 16" AR-15 Rifle View Details

$555.91 $632.74

12% off

Buy Now · $555.91

Last Updated:

Aug 30, 2026 01:52 AM

Diamondback DB15 M-LOK 5.56x45mm NATO 10" AR Pistol

Diamondback DB15 M-LOK 5.56x45mm NATO 10" AR Pistol View Details

$656.82 $747.60

12% off

Buy Now · $656.82

Last Updated:

Aug 30, 2026 01:52 AM

Diamondback DB1911SS 1911 Limited Edition 45 ACP 8+1 5" Stainless Match Grade Barrel, Ported/Serrated Stainless Steel Slide & Frame w/Beavertail, Black G10 Grip

Diamondback DB1911SS 1911 Limited Edition 45 ACP 8+1 5" Stainless Match Grade Barrel, Ported/Serrated Stainless Steel Slide & Frame w/Beavertail, Black G10 Grip View Details

$2550.00 $3060.00

17% off

Buy Now · $2550.00

Last Updated:

Aug 30, 2026 01:52 AM

Diamondback DB10 8.6 Blackout 20+1 12" Black Nitride 11" M-LOK Handguard SBA5 Brace Magpul MOE K2 Grip Pistol

Diamondback DB10 8.6 Blackout 20+1 12" Black Nitride 11" M-LOK Handguard SBA5 Brace Magpul MOE K2 Grip Pistol View Details

$1217.70 $1386.00

12% off

Buy Now · $1217.70

Last Updated:

Aug 30, 2026 01:52 AM

Diamondback DB15 Obsidian Black Nitride 11" M-LOK SBA5 Brace 5.56 NATO 30+1 11.50" AR Pistol

Diamondback DB15 Obsidian Black Nitride 11" M-LOK SBA5 Brace 5.56 NATO 30+1 11.50" AR Pistol View Details

$1081.17 $1230.60

12% off

Buy Now · $1081.17

Last Updated:

Aug 30, 2026 01:52 AM

Diamondback DB10 Black M-LOK SBA3 Brace .308 WIN 20-Round 13.5" AR-Platform Pistol

Diamondback DB10 Black M-LOK SBA3 Brace .308 WIN 20-Round 13.5" AR-Platform Pistol View Details

$1019.67 $1160.60

12% off

Buy Now · $1019.67

Last Updated:

Aug 30, 2026 01:52 AM

Diamondback DB15 OD Green Cerakote 5.56 NATO 10" AR Pistol with SB Tactical Brace

Diamondback DB15 OD Green Cerakote 5.56 NATO 10" AR Pistol with SB Tactical Brace View Details

$746.00 $886.20

16% off

Buy Now · $746.00

Last Updated:

Aug 30, 2026 01:52 AM

Diamondback DB15 Flat Dark Earth Cerakote 10" Heavy Barrel 9" M-LOK .300 AAC Blackout AR Pistol

Diamondback DB15 Flat Dark Earth Cerakote 10" Heavy Barrel 9" M-LOK .300 AAC Blackout AR Pistol View Details

$778.59 $886.20

12% off

Buy Now · $778.59

Last Updated:

Aug 30, 2026 01:52 AM

Diamondback DB15 AR Pistol Black 5.56x45mm NATO 7" SBA3 Brace

Diamondback DB15 AR Pistol Black 5.56x45mm NATO 7" SBA3 Brace View Details

$707.25 $840.00

16% off

Buy Now · $707.25

Last Updated:

Aug 30, 2026 01:52 AM

Diamondback DB15 Black SBA3 Pistol Brace 5.56x45mm NATO 10" 30+1 AR Pistol

Diamondback DB15 Black SBA3 Pistol Brace 5.56x45mm NATO 10" 30+1 AR Pistol View Details

$707.25 $840.00

16% off

Buy Now · $707.25

Last Updated:

Aug 30, 2026 01:52 AM

Diamondback SDR Stainless Steel 6-Round .357 Magnum 2" Double-Action Revolver

Diamondback SDR Stainless Steel 6-Round .357 Magnum 2" Double-Action Revolver View Details

$710.94 $809.20

12% off

Buy Now · $710.94

Last Updated:

Aug 30, 2026 01:52 AM

Diamondback DB15 M-LOK Threaded 5.56x45mm NATO 30+1 7" AR Pistol

Diamondback DB15 M-LOK Threaded 5.56x45mm NATO 30+1 7" AR Pistol View Details

$656.82 $747.60

12% off

Buy Now · $656.82