AR-15 Barrels
The AR-15 barrel is one of the most critical parts of your AR-15 – let AT3 Tactical help you find the right AR-15 barrel for your setup.
Barrels come in a variety of lengths, materials, and designs to serve the specific purpose of your weapon. Learn more about AR-15 barrels in our article: Choosing an AR15 Barrel – 5 Things to Consider
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- Barrels - Ballistic Advantage (77)
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- Barrels - .223/5.56 (141)
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- Barrels - .300 Blackout (19)
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Bear Creek Arsenal 5.56 NATO 16 Inch AR-15 Barrel – Parkerized Government Profile –...
Bear Creek Arsenal 5.56 NATO 16 Inch AR-15 Barrel - Parkerized Government Profile - Midlength Gas The BC-15 16" Parkerized M4 barrel with a 1:7 twist is optimized for accuracy... -
Bear Creek Arsenal 7.62×39 16 Inch AR-15 Barrel – Parkerized Heavy Profile – Carbine...
Bear Creek Arsenal 7.62x39 16 Inch AR-15 Barrel - Parkerized Heavy Profile - Carbine Gas The Bear Creek Arsenal AR-15 16" heavy barrel is a great option for anyone looking... -
Bear Creek Arsenal 5.56 NATO 16 Inch AR-15 Barrel – Parkerized Heavy Profile –...
Bear Creek Arsenal 5.56 NATO 16 Inch AR-15 Barrel - Parkerized Heavy Profile - Carbine Gas The Bear Creek Arsenal 5.56 NATO 16 Inch AR-15 Barrel is an excellent choice... -
Bear Creek Arsenal .223 Wylde 16 Inch AR-15 Barrel – Parkerized Lightweight Profile –...
Bear Creek Arsenal .223 Wylde 16 Inch AR-15 Barrel - Parkerized Lightweight Profile - Midlength Gas The Bear Creek Arsenal .223 Wylde 16 Inch AR-15 Barrel is a high-quality barrel... -
AT3™Sale!
AT3™ 9mm Straight Profile 4.5 Inch AR-15 Barrel
Precision Pistol Caliber Performance in a Compact Package Bring the versatility of 9mm to your AR build with this straight profile 4.5" barrel from AT3™. Crafted from premium 4150 CrMoV...$72.50Only$61.63 -
Bear Creek Arsenal 6.5 Grendel 16 Inch AR-15 Barrel – Parkerized Heavy Profile –...
Bear Creek Arsenal 6.5 Grendel 16 Inch AR-15 Barrel - Parkerized Heavy Profile - Carbine Gas The Bear Creek Arsenal AR-15 16" 6.5 Grendel heavy barrel is a high-quality barrel... -
Bear Creek Arsenal .450 Bushmaster 16 Inch AR-15 Barrel – Parkerized Heavy Profile –...
Bear Creek Arsenal .450 Bushmaster 16 Inch AR-15 Barrel - Parkerized Heavy Profile - Carbine Gas Bear Creek Arsenal is known for their commitment to quality, and their barrels are... -
Bear Creek Arsenal .458 SOCOM 16 Inch AR-15 Barrel – Parkerized Heavy Profile –...
Bear Creek Arsenal .458 SOCOM 16 Inch AR-15 Barrel - Parkerized Heavy Profile - Carbine Gas The Bear Creek Arsenal 16" heavy barrel has been designed to meet the demands... -
AT3™Sale!
AT3™ 9mm Straight Profile 8.3 Inch AR-15 Barrel
Precision Pistol Caliber Performance in a Compact Package Bring the versatility of 9mm to your AR build with this straight profile 8.3" barrel from AT3™. Crafted from premium 4150 CrMoV...$85.00Only$72.25 -
Bear Creek Arsenal .300 Blackout 16 Inch AR-15 Barrel – Nitride Heavy Profile –...
Bear Creek Arsenal .300 Blackout 16 Inch AR-15 Barrel - Nitride Heavy Profile - Pistol Gas The Bear Creek Arsenal AR-15 16" heavy, Black Nitride .300 blackout barrel is a... -
AT3™Sale!
AT3™ .22LR Tapered Profile 4.5 Inch AR-15 Barrel
Precision Rimfire Performance in a Compact Package Bring the versatility of .22LR to your AR build with this tapered 4.5" barrel from AT3™. Crafted from premium 4150 CrMoV steel...$87.50Only$74.38 -
AT3™Sale!
AT3™ 300 Blackout Medium Profile 7.5 Inch AR-15 Barrel
7.5 Inch .300 Blackout Barrel by AT3 Tactical This 7.5-inch .300 Blackout Barrel makes a great choice for your short, heavy-hitting pistol or SBR AR-15 builds. Made from 4150 CMV...$105.00Only$89.25 -
AT3™Sale!
AT3™ 9mm Straight Profile 16 Inch AR-15 Barrel
Powerful Pistol Caliber Performance in a Carbine Package Bring the versatility of 9mm to your AR build with this straight profile 16" barrel from AT3™. Crafted from premium 4150 CrMoV...$105.00Only$89.25 -
Diamondback Firearms 10 Inch Carbine Length AR 15 Barrel – 5.56 NATO – 4150...
AR15 Pistol Barrel at a Great Price If you're looking at building an AR15 pistol, you might be surprised at how much you have to pay for less gun per... -
Diamondback Firearms 16 Inch Carbine AR 15 Barrel – 5.56 NATO – 4150 CMV...
Nitride Barrel with 11 Degree Target Crown Low cost and high value components can be hard to come by - luckily, Diamondback Firearms delivers with their barrels. This carbine length... -
AT3™Sale!
AT3™ 9mm Straight Profile 11 Inch AR-15 Barrel
Powerful Pistol Caliber Performance in a Compact Package Bring the versatility of 9mm to your AR build with this straight profile 11" barrel from AT3™. Crafted from premium 4150 CrMoV...$90.00Only$76.50 -
Anderson 5.56 10.5 inch M4 Barrel – Carbine Length
Excellent Quality - Unbeatable Value An all-around barrel, perfect for your next build! Made from 4150 CMV Steel with a Nitride finish, this barrel provides accuracy for your 5.56 build.... -
AT3™Sale!
AT3™ .300 Blackout Medium Profile 10.5 Inch AR-15 Barrel
10.5 Inch .300 Blackout Barrel by AT3 Tactical This 10.5 Inch .300 Blackout Barrel makes a great choice for your short, heavy-hitting pistol or SBR AR-15 builds. Made from 4150...$112.50Only$95.63 -
AT3™Sale!
AT3™ 5.56 NATO Government Profile 11.5 Inch AR-15 Barrel
11.5 Inch Government 5.56 NATO Barrel by AT3 Tactical With a sturdy profile and proven construction, this 11.5-inch 5.56 NATO barrel features a carbine-length gas system for smoother recoil. This...$112.50Only$95.63 -
NEW
KAK Industry 4 Inch OE-Spec 9mm AR-15 Barrel
Ultra-Compact 9mm Firepower with KAK's 4" Barrel This 4" barrel provides versatile 9mm capability in an incredibly compact AR platform. The durable 41V50 chrome moly construction has a nitride finish... -
Ballistic Advantage 9mm 5.5 Inch AR 15 Barrel – Straight Profile with 1/2×28 Threads
PDW Length 9mm Barrel for AR-15 For a personal defense weapon, a compact barrel that works in close quarters is a must. This 5.5 inch barrel from Ballistic Advantage features... -
Ballistic Advantage 9mm 4.5 Inch Barrel – Straight Profile with 1/2×28 Threads
Super-Shorty AR-9 Barrel for Defensive Pistols Specialized for personal defense AR-9 builds, this barrel's length is a mere 4.5 inches, including the barrel extension. The length is equivalent to most... -
Diamondback Firearms 16 Inch Midlength AR 15 Barrel – 5.56 NATO – 4150 CMV...
High Value 5.56 Barrel for the Working American Low cost and high value components can be hard to come by - luckily, Diamondback Firearms delivers with their barrels. This midlength... -
Bear Creek Arsenal .350 Legend 18 Inch AR-15 Barrel – Parkerized Heavy Profile –...
Bear Creek Arsenal .350 Legend 18 Inch AR-15 Barrel - Parkerized Heavy Profile - Carbine Gas The Bear Creek Arsenal AR-15 18" .350 Legend heavy barrel is perfect for your...
Other AR-15 Upper Receiver Components:
AR 15 Charging Handles
AR 15 Gas Blocks & Tubes
AR 15 Handguards & Quad Rails
AR-15 Barrels
AR-15 Bolt Carrier Groups
AR-15 Front Grips
AR-15 Upper Receivers and Parts
Muzzle Devices
AR-15 Handguard Accessories