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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 654

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  1. PSA Guardsman-15 Barrel 10.3" 5.56 NATO 1:7 Carbine-Length CL Phosphate

    PSA Guardsman-15 Barrel 10.3" 5.56 NATO 1:7 Carbine-Length CL Phosphate

    Regular Price $159.99 Special Price $151.99
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  2. PSA Guardsman-15 Barrel 16" 5.56 NATO 1:7 Mid-Length CL Phosphate

    PSA Guardsman-15 Barrel 16" 5.56 NATO 1:7 Mid-Length CL Phosphate

    Regular Price $169.99 Special Price $161.49
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  3. Faxon Firearms 16" 338 ARC Gunner Pistol Length Barrel

    Faxon Firearms 16" 338 ARC Gunner Pistol Length Barrel

    Regular Price $255.99 Special Price $229.99
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  4. Faxon Firearms Match Pistol-Length 5R Button Rifled Gunner Barrel .300 AAC Blackout 10.50", Black

    Faxon Firearms Match Pistol-Length 5R Button Rifled Gunner Barrel .300 AAC Blackout 10.50", Black

    Regular Price $196.99 Special Price $176.99
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  5. Wilson Combat Intermediate-Length Button Rifling Non-Fluted Ranger Barrel 5.56x45mm 16", Stainless

    Wilson Combat Intermediate-Length Button Rifling Non-Fluted Ranger Barrel 5.56x45mm 16", Stainless

    $220.99
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  6. Wilson Combat Button Rifling Non-Fluted SBR Tactical Barrel .300 AAC Blackout 11.30", Stainless

    Wilson Combat Button Rifling Non-Fluted SBR Tactical Barrel .300 AAC Blackout 11.30", Stainless

    Rating:
    100%
    (1)
    Regular Price $246.99 Special Price $223.99
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  7. Wilson Combat Button Rifling Fluted Recon Tactical Barrel .308 Win 16", Stainless

    Wilson Combat Button Rifling Fluted Recon Tactical Barrel .308 Win 16", Stainless

    $310.99
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  8. Sons of Liberty Gun Works Precision SPR Threaded Barrel .223 Wylde 18", Black

    Sons of Liberty Gun Works Precision SPR Threaded Barrel .223 Wylde 18", Black

    Regular Price $443.99 Special Price $399.99
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  9. Faxon Firearms Mid-Length Button Rifled Socom Barrel w/Pinned Gas Block 5.56x45mm 16", Black

    Faxon Firearms Mid-Length Button Rifled Socom Barrel w/Pinned Gas Block 5.56x45mm 16", Black

    Regular Price $239.99 Special Price $217.99
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  10. Faxon Firearms Duty Pistol-Length Button Rifled Gov't/Socom Barrel 5.56x45mm 7.50", Black

    Faxon Firearms Duty Pistol-Length Button Rifled Gov't/Socom Barrel 5.56x45mm 7.50", Black

    $138.99
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  11. Wilson Combat Rifle-Length Button Rifling Fluted Urban Super Sniper Barrel .223 Wylde 18", Stainless

    Wilson Combat Rifle-Length Button Rifling Fluted Urban Super Sniper Barrel .223 Wylde 18", Stainless

    Rating:
    100%
    (1)
    Regular Price $326.99 Special Price $296.99
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  12. Faxon Firearms Match Mid-Length 5R Button Rifled Gunner Barrel .223 Wylde 14.50", Black

    Faxon Firearms Match Mid-Length 5R Button Rifled Gunner Barrel .223 Wylde 14.50", Black

    $199.99
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  13. 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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  14. 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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  15. 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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  16. 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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  17. 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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  18. 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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  19. 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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  20. 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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  21. 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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  22. 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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  23. 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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  24. 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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  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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