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AR-15 Barrels & Barrel Assemblies

Find the best selection of AR-15 barrels and barrel assemblies right here at your online source for AR-15 lower parts, complete AR-15 rifles, and much more. We offer a variety of barrels from 5.56 barrels to 300 blackout barrels at prices that are hard to beat. Read our guide to barrel finishes to help you find the right barrel for your needs. Palmetto State Armory is your source for buying AR-15 parts online. 

5.56 Barrels

5.56 Barrels
6.8mm Barrels

6.8mm Barrels
300 Blackout Barrels

300 Blackout Barrels
9mm Barrels

9mm Barrels
.458 SOCOM Barrels

.458 SOCOM Barrels
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Items 1-24 of 221

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  1. Rosco Manufacturing Purebred Barrel .223 Wylde 20", Silver

    Rosco Manufacturing Purebred Barrel .223 Wylde 20", Silver

    Regular Price $220.99 Special Price $198.99
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  2. Faxon Firearms Match Heavy Fluted 5R Button Rifled Barrel .223 Wylde 20", Black

    Faxon Firearms Match Heavy Fluted 5R Button Rifled Barrel .223 Wylde 20", Black

    $291.99
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  3. Faxon Firearms Match Heavy Fluted 5R Button Rifled Barrel .223 Wylde 18", Black

    Faxon Firearms Match Heavy Fluted 5R Button Rifled Barrel .223 Wylde 18", Black

    $282.99
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  4. Faxon Firearms Match Pencil 5R Button Rifled Barrel .223 Wylde 16", Black

    Faxon Firearms Match Pencil 5R Button Rifled Barrel .223 Wylde 16", Black

    $207.99
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  5. Stern Defense Barrel .45 ACP 16.10", Black

    Stern Defense Barrel .45 ACP 16.10", Black

    $156.99
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  6. Stern Defense Barrel .45 ACP 10.50", Black

    Stern Defense Barrel .45 ACP 10.50", Black

    $146.99
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  7. Stern Defense Barrel .40 S&W 16.10", Black

    Stern Defense Barrel .40 S&W 16.10", Black

    $144.99
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  8. Faxon Firearms Match Gunner 5R Button Rifled Barrel .300 AAC Blackout 9", Black

    Faxon Firearms Match Gunner 5R Button Rifled Barrel .300 AAC Blackout 9", Black

    $166.99
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  9. Faxon Firearms Big Gunner Button Rifled Barrel 8.6 Blackout 12"

    Faxon Firearms Big Gunner Button Rifled Barrel 8.6 Blackout 12"

    $229.99
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  10. Faxon Firearms Match Spiral Fluted 5R Button Rifled Barrel .308 Win 20", Black

    Faxon Firearms Match Spiral Fluted 5R Button Rifled Barrel .308 Win 20", Black

    $319.99
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  11. Faxon Firearms Match Target 5R Button Rifled Honed and Lapped Barrel 6.5 Grendel 18"

    Faxon Firearms Match Target 5R Button Rifled Honed and Lapped Barrel 6.5 Grendel 18"

    $216.99
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  12. Faxon Firearms Match Gunner 5R Rifled Barrel .223 Wylde 16"

    Faxon Firearms Match Gunner 5R Rifled Barrel .223 Wylde 16"

    $175.99
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  13. Faxon Firearms Gunner Button Rifled Barrel .300 AAC Blackout 10.50", Black

    Faxon Firearms Gunner Button Rifled Barrel .300 AAC Blackout 10.50", Black

    $180.99
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  14. Faxon Firearms M4 Button Rifled Barrel 5.56x45mm 16", Black

    Faxon Firearms M4 Button Rifled Barrel 5.56x45mm 16", Black

    $193.99
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  15. Faxon Firearms Match Spiral Fluted 5R Rifled Barrel .223 Wylde 16", Black

    Faxon Firearms Match Spiral Fluted 5R Rifled Barrel .223 Wylde 16", Black

    $279.99
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  16. Faxon Firearms Medium Taper Button Rifled Barrel 5.56x45mm 12.50", Black

    Faxon Firearms Medium Taper Button Rifled Barrel 5.56x45mm 12.50", Black

    $184.99
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  17. Faxon Firearms M4 Button Rifled Barrel 5.56x45mm 14.50", Black

    Faxon Firearms M4 Button Rifled Barrel 5.56x45mm 14.50", Black

    $189.99
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  18. Faxon Firearms Duty HBAR Button Rifled Barrel 5.56x45mm 16", Black

    Faxon Firearms Duty HBAR Button Rifled Barrel 5.56x45mm 16", Black

    $157.99
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  19. Faxon Firearms Big Gunner 5R Button Rifled Barrel 8.6 Blackout 16"

    Faxon Firearms Big Gunner 5R Button Rifled Barrel 8.6 Blackout 16"

    $226.99
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  20. Faxon Firearms Match Target 5R Button Rifled Barrel .308 Win 20"

    Faxon Firearms Match Target 5R Button Rifled Barrel .308 Win 20"

    $240.99
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  21. Faxon Firearms Match Target 5R Button Rifled Honed and Lapped Barrel .22 ARC 22"

    Faxon Firearms Match Target 5R Button Rifled Honed and Lapped Barrel .22 ARC 22"

    $248.99
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  22. Faxon Firearms Match Target 5R Rifled Barrel .223 Wylde 20"

    Faxon Firearms Match Target 5R Rifled Barrel .223 Wylde 20"

    $231.99
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  23. Faxon Firearms Duty Gunner Button Rifled Barrel .400 Legend 16", Black

    Faxon Firearms Duty Gunner Button Rifled Barrel .400 Legend 16", Black

    Regular Price $207.99 Special Price $186.99
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  24. CMMG Barrel 8.6 Blackout 12.50", Black

    CMMG Barrel 8.6 Blackout 12.50", Black

    $204.99
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