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Custom AR15 Barrels in Stock

223/5.56 BARRELS

300 BLACKOUT BARRELS

7.62x39 BARRELS

6.5 GRENDEL BARRELS

Barrel Accessories and Parts

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Right To Bear 4.5" 9mm Barrel - 1/2x28 Muzzle Thread

MSRP: $95.00

SALE PRICE: $89.75

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Right To Bear 4.5" Medium Taper Profile Barrel .22LR

MSRP: $159.95

SALE PRICE: $114.95

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Right To Bear 4.5" Straight Profile Barrel 9mm - 1/2 X 36

MSRP: $100.00

SALE PRICE: $89.75

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Kaw Valley Precision 4.5" 9mm AR Barrel - 1/2x36

MSRP: $109.95

SALE PRICE: $99.95

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CMMG .22LR 4.5" Barrel and Stainless Bolt Group Kit

MSRP: $299.95

SALE PRICE: $294.95

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CMMG 4.5" Barrel, M4 4140CM SBN - .22LR

MSRP: $159.95

SALE PRICE: $124.95

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DB 4.5" MEDIUM PROFILE BARREL 9mm

MSRP: $77.00

SALE PRICE: $45.95

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Ballistic Advantage 4.5" 9mm Pistol AR Barrel - 1/2x28 Thread, Modern Series

MSRP: $105.00

SALE PRICE: $99.75

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FAXON FIREARMS 4.5" Taper, 9mm Pistol Caliber Carbine, Blowback, 4150 QPQ

MSRP: $109.00

SALE PRICE: $103.55

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If you are looking to buy AR barrels online, Right to Bear Arms and Supply has the best selection of high-quality, lightweight AR15 barrels made using the most durable materials available. AR15 barrels must withstand high forces repeatedly — with minimal damage to the barrel and complete assembly — so quality is a key factor to the longevity of AR barrels.

Right to Bear is committed to connecting customers with custom AR15 barrels for sale, made using the latest combat-tested technologies. In addition to variety of barrel lengths from well-known manufacturers, such as Ballistic Advantage, Faxon Firearms and Spike’s Tactical, rifle owners can also find custom AR barrels in stock on the website to suit their specific needs.

More precision and superior materials in these AR15 barrels contribute to higher accuracy and reliability over long periods of time. Corrosion-resistant treatments, including Ballistic Advantage’s Quench Polish Quench nitro-carburizing formula, allow for firing more rounds with less wear on the barrel and fewer replacements over time.