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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 49-72 of 654

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  1. Faxon Firearms Duty Carbine-Length Button Rifled Gunner Barrel 7.62x39mm 10.50", Black

    Faxon Firearms Duty Carbine-Length Button Rifled Gunner Barrel 7.62x39mm 10.50", Black

    Regular Price $174.99 Special Price $158.99
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  2. Faxon Firearms Duty Pistol-Length Button Rifled Gunner Barrel .300 AAC Blackout 7.50", Black

    Faxon Firearms Duty Pistol-Length Button Rifled Gunner Barrel .300 AAC Blackout 7.50", Black

    $134.99
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  3. Faxon Firearms Match Mid-Length 5R Button Rifled Heavy Fluted Barrel 6.5 Grendel 18", Black

    Faxon Firearms Match Mid-Length 5R Button Rifled Heavy Fluted Barrel 6.5 Grendel 18", Black

    Rating:
    100%
    (1)
    Regular Price $337.99 Special Price $303.99
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  4. Faxon Firearms Match Rifle-Length 5R Button Rifled Heavy Fluted Barrel 6.5 Creedmoor 20", Black

    Faxon Firearms Match Rifle-Length 5R Button Rifled Heavy Fluted Barrel 6.5 Creedmoor 20", Black

    $354.99
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  5. Faxon Firearms Match Rifle-Length 5R Button Rifled Big Gunner Barrel 6.5 Creedmoor 18", Black

    Faxon Firearms Match Rifle-Length 5R Button Rifled Big Gunner Barrel 6.5 Creedmoor 18", Black

    Regular Price $322.99 Special Price $292.99
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  6. Faxon Firearms Match Rifle-Length 5R Button Rifled Flame Fluted Barrel .223 Wylde 18", Black

    Faxon Firearms Match Rifle-Length 5R Button Rifled Flame Fluted Barrel .223 Wylde 18", Black

    Regular Price $332.99 Special Price $299.99
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  7. PROOF RESEARCH Rifle +2 Length AR-Type Barrel 6.5 Creedmoor 24", Stainless Steel

    PROOF RESEARCH Rifle +2 Length AR-Type Barrel 6.5 Creedmoor 24", Stainless Steel

    $569.99
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  8. Bravo Company MK12 Rifle-Length M4 Barrel Kit 5.56x45mm 18", Silver

    Bravo Company MK12 Rifle-Length M4 Barrel Kit 5.56x45mm 18", Silver

    Regular Price $465.99 Special Price $422.99
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  9. Brownells Lightweight Carbine-Length Barrel Assembly 5.56x45mm 12.70", Black

    Brownells Lightweight Carbine-Length Barrel Assembly 5.56x45mm 12.70", Black

    Regular Price $258.99 Special Price $234.99
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  10. Bravo Company Mid-Length Enhanced Lightweight Barrel Assembly 5.56x45mm 16", Black

    Bravo Company Mid-Length Enhanced Lightweight Barrel Assembly 5.56x45mm 16", Black

    Regular Price $367.99 Special Price $333.99
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  11. Bravo Company Mid-Length Enhanced Lightweight Barrel Assembly 5.56x45mm 14.50", Black

    Bravo Company Mid-Length Enhanced Lightweight Barrel Assembly 5.56x45mm 14.50", Black

    Regular Price $384.99 Special Price $349.99
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  12. Faxon Firearms Duty Blowback Button Rifled Pistol Caliber Taper Barrel 9mm 8.50", Black

    Faxon Firearms Duty Blowback Button Rifled Pistol Caliber Taper Barrel 9mm 8.50", Black

    $108.99
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  13. Faxon Firearms Duty Mid-Length Button Rifled Gunner Barrel 5.56x45mm 14.50", Black

    Faxon Firearms Duty Mid-Length Button Rifled Gunner Barrel 5.56x45mm 14.50", Black

    $147.99
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  14. CMMG Multi Role Contour Barrel Sub-Assembly .300 AAC Blackout 12.50"

    CMMG Multi Role Contour Barrel Sub-Assembly .300 AAC Blackout 12.50"

    $193.99
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  15. Rosco Manufacturing Purebred Barrel .223 Wylde 20", Silver

    Rosco Manufacturing Purebred Barrel .223 Wylde 20", Silver

    Regular Price $232.99 Special Price $210.99
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  16. Rosco Manufacturing Purebred Barrel .223 Wylde 18", Silver

    Rosco Manufacturing Purebred Barrel .223 Wylde 18", Silver

    Regular Price $229.99 Special Price $208.99
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  17. 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

    Regular Price $337.99 Special Price $303.99
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  18. 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

    Regular Price $327.99 Special Price $294.99
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  19. Faxon Firearms Match Pencil 5R Button Rifled Barrel .223 Wylde 16", Black

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

    Regular Price $247.99 Special Price $222.99
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  20. Stern Defense Barrel .45 ACP 16.10", Black

    Stern Defense Barrel .45 ACP 16.10", Black

    Regular Price $172.99 Special Price $156.99
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  21. Stern Defense Barrel .45 ACP 10.50", Black

    Stern Defense Barrel .45 ACP 10.50", Black

    Rating:
    80%
    (1)
    $146.99
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  22. Faxon Firearms Duty Gunner Button Rifled Barrel .300 AAC Blackout 10.50", Black

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

    Rating:
    100%
    (1)
    Regular Price $168.99 Special Price $151.99
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  23. Faxon Firearms Big Gunner Button Rifled Barrel 8.6 Blackout 12"

    Faxon Firearms Big Gunner Button Rifled Barrel 8.6 Blackout 12"

    Regular Price $312.99 Special Price $283.99
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  24. 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

    Regular Price $369.99 Special Price $332.99
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Items 49-72 of 654

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  1. 5.56 Barrels 271
  2. 6.8mm Barrels 4
  3. 300 Blackout Barrels 73
  4. 9mm Barrels 52
  5. .458 SOCOM Barrels 3
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