AR-15 Barrels | High-Quality AR-15 Barrels for Custom Builds
Custom AR-15 Barrels
Upgrade your rifle with premium AR-15 barrels from Moriarti Armaments. Whether you're building a new AR-15 or replacing a worn barrel, we offer precision-machined barrels in today's most popular calibers, including 5.56 NATO, .223 Wylde, 300 Blackout, 6.5 Grendel, 6.8 SPC, 7.62x39, .350 Legend, .450 Bushmaster, .50 Beowulf, .338 ARC, and .277 SIG Fury. Choose from a variety of barrel lengths, profiles, gas system configurations, and finishes to match your build. Designed for reliability, accuracy, and long service life, our AR-15 barrels are built to perform in hunting, competition, recreational, and tactical applications.
What barrel length is best for an AR-15?
The ideal AR-15 barrel length depends on your intended use. 10.5" to 12.5" barrels are popular for compact pistol builds, 14.5" to 16" barrels offer an excellent balance of maneuverability and velocity for general-purpose rifles, while 18" to 24" barrels are often preferred for precision shooting and hunting. The best choice depends on your caliber, application, and applicable federal, state, and local laws.
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-228x228.webp "AR-15 MORIARTI 5.56 NATO 7.5\" Medium Profile Barrel / Pistol Length")
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AR-15 MORIARTI 5.56 NATO 7.5" Medium Profile Barrel / Pistol Length
AR-15 MORIARTI 5.56 NATO 7.5" Medium Profile Barrel / Pistol LengthQuench Polish Quench (QPQ) is a s..
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AR-47 7.62x39 16" Diamond Fluted Stainless Steel Barrel / 1:10 Twist / Carbine Length – Moriarti Armaments
Upgrade your AR-47 with precision and durability. This 16” 7.62x39 diamond fluted barrel from Moriar..
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AR-47 7.62x39, 7.5" Heavy Barrel, 1:10 Twist, Pistol Length | Parkerized
7.62x39, 7.5" Heavy Barrel, 1:10 Twist, Pistol Length | Parkerized. Comes with barrel extension and ..
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CMMG 5.7x28mm 8" Barrel & BCG Kit | Radial Delayed Blowback
The CMMG 5.7x28mm 8" Barrel and BCG Kit combines the two core CMMG components for a compatible AR-pl..
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Combo Deal: AR-15 CMMG 16.1" Barrel and BCG Kit 5.7x28mm – Perfect for AR Builds
Build your custom AR-15 with the CMMG 16.1" 5.7x28mm Barrel and Bolt Carrier Group (BCG) Kit. This c..
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Combo Set: .22LR Kit – 9" Barrel, Stainless Bolt Group & Charging Handle
Get everything you need to upgrade your AR-15 with our comprehensive .22LR Combo Set. This kit featu..
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Combo Set: AR-22 22LR 16" Pencil Profile Barrel with Dedicated Steel BCG
Upgrade your AR-15 platform with this Combo Deal featuring a 16" Pencil Profile Barrel and a Dedicat..
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Combo Set: Dedicated .22LR Kit – 4.5" Barrel, Stainless Bolt Group & Charging Handle
Enhance your AR-15 with our dedicated .22LR Kit, designed for compact and efficient performance. Thi..
Moriarti AR-15 300 ACC Blackout 7.5" Barrel, 1-7 twist, Med Profile, Nitride
AR-15 300 ACC Blackout 7.5" Barrel, 1-7 twist, Med Profile, Nitride - Nitride treatment fo..
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Moriarti AR-15 300 Blackout 14.5" Barrel - Pistol Length, 4150 CMV, QPQ Corrosion Resistant
Upgrade your AR-15 build with the Moriarti Armaments 300 Blackout 14.5" Barrel designed for precisio..
MORIARTI AR-15 300 BLACKOUT 16" NITRIDE BARREL, 1X7, MED PROFILE
MORIARTI AR-15 300 BLACKOUT 16" NITRIDE BARREL, 1X7, MED PROFILE Chamber: .300BLK Conto..
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Moriarti AR-15 5.56 NATO 10.5" 4150 CMV Barrel, Gov't Profile, 1X7, Nitride
Moriarti AR-15 5.56 NATO 10.5" 4150 CMV Barrel, Gov't Profile, 1X7, Nitride &nb..
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Moriarti AR-15 5.56 NATO 14.5" Government Profile Barrel - 1:7 Twist, Mid-Length Gas System
Enhance your AR-15 build with the Moriarti Armaments 5.56 NATO 14.5" Government Profile Barrel, desi..
-228x228.webp "Moriarti AR-15 5.56 NATO 14.5\" Pencil Profile Barrel - Mid-Length Gas System, .625\" Gas Block Journal")
Moriarti AR-15 5.56 NATO 14.5" Pencil Profile Barrel - Mid-Length Gas System, .625" Gas Block Journal
The Moriarti Armaments 5.56 NATO 14.5" Pencil Profile Barrel offers the perfect combination of light..
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Moriarti AR-15 5.56 Nato 16" mid-length barrel, 1-7 twist. Gov't profile
Moriarti AR-15 5.56 Nato 16" mid-length barrel, 1-7 twist. Gov't profileCHAMBERED IN 5.56 NATO (ACCE..
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Moriarti AR-15 5.56 NATO 24" Spiral Fluted SS Heavy Barrel – 1:8 Twist | Rifle Gas | 416R
Elevate your AR-15’s precision with the Moriarti 5.56 NATO 24" Spiral Fluted Heavy Barrel, crafted f..
AR-15 5.5" 5.56mm 1:5 Twist Barrel with Rainbow PVD Coating | 4150 Chromoly Steel | Micro Pistol Gas System
When it comes to building or upgrading your AR-15, every component matters, especially your barrel. ..
AR-15 .223 Wylde 7.5" Inch Pistol Length Barrel 1:7 Twist / GOLD
AR-15 .223 Wylde 7.5" Inch Pistol Length Barrel 1:7 Twist / GOLDLength: 7.5" Pistol.223 WYLDE1:7 Twi..
AR-15 .224 VALKYRIE 20" DIAMOND FLUTED HEAVY BARREL/ 416R / 1:7 TWIST
AR-15 20" .224 VALKYRIE DIAMOND FLUTED HEAVY BARREL/ 416R / 1:7 TWIST 20" HEAVY CONTOUR WITH 1:7..
AR-15 .224 VALKYRIE 20" HEAVY BARREL / STAINLESS / 1:7 TWIST
AR-15 .224 VALKYRIE 20" HEAVY BARREL / STAINLESS / 1:7 TWIST20" HEAVY CONTOUR WITH 1:7 TWIST416R STA..
AR-15 .224 Valkyrie 20" SPIRAL FLUTED HEAVY BARREL/ SS / 1:7 TWIST
AR-15 .224 Valkyrie 20" SPIRAL FLUTED HEAVY BARREL/ SS / 1:7 TWIST20" HEAVY CONTOUR WITH 1:7 TWIST41..
AR-15 .224 Valkyrie 20" STRAIGHT FLUTED HEAVY BARREL/ 416R / 1:7 TWIST
AR-15 .224 Valkyrie 20" STRAIGHT FLUTED HEAVY BARREL/ 416R / 1:7 TWIST 20" HEAVY CONTOUR WITH 1..
AR-15 .400 Legend 10.5" Pistol Barrel | 1:16 Twist | Pistol Gas
Build a compact .400 Legend AR-15 configuration around this 10.5" .400 Legend pistol barrel. Manufac..
AR-15 5.56/.223 WYLDE 16" DIAMOND FLUTED STAINLESS STEEL BARREL, 1X8
AR-15 5.56 16" DIAMOND FLUTED STAINLESS STEEL HBAR BARREL. MADE FROM 416R STAINLESS STEEL HARDE..
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AR-15 5.56/.223 Wylde, 24" Black Nitride Spiral Fluted Heavy Barrel - 1:8 Twist, Rifle Length Gas System
The AR-15 5.56/.223 Wylde 24" Black Nitride Spiral Fluted Heavy Barrel is engineered for precision a..
AR-400 Legend 7.5" Government Profile Pistol Barrel – 1:16 Twist, 4150 CrMoV, Black Nitride
Built for short, powerful AR pistols, this 7.5” .400 Legend barrel features a Government profile, 1:..
MORIARTI AR-74 16" 5.45x39 Nitrided Barrel – 41V50 Steel, Carbine Gas, 1/2x28 Thread
Built for shooters who demand AK-caliber performance in an AR platform, the MORIARTI AR-74 16” 5.45x..
-228x228.webp "AR-15 .223 WYLDE 16\" STRAIGHT FLUTED BULL BARREL; SS, 1:8 TWIST")
AR-15 .223 WYLDE 16" STRAIGHT FLUTED BULL BARREL; SS, 1:8 TWIST
AR-15 .223 WYLDE 16" STRAIGHT FLUTED BULL BARREL; SS, 1:8 TWIST. MADE IN USA Barrel leng..
AR-15 5.56 16" stainless steel bull barrel diamond pulse fluted / 1x9
AR-15 5.56 16" stainless steel bull barrel diamond pulse fluted. MADE FROM 416 STAINLESS STEEL HARDE..
-228x228.webp "AR-15 5.56 16\" stainless steel bull barrel x-treme spiral pulse fluted, 1-9")
AR-15 5.56 16" stainless steel bull barrel x-treme spiral pulse fluted, 1-9
AR-15 16" stainless steel bull barrel x-treme spiral pulse fluted. Chambered in 5.56 nato (also acce..
Moriarti AR-15 5.56 NATO 16" Black Diamond Fluted Heavy Barrel | 1:9 Twist | 416R SS | Carbine Gas
Unleash accuracy and durability with the Moriarti AR-15 16" Black Diamond Fluted Heavy Barrel, craft..