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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 653

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  1. Faxon Firearms Match Series 14.5" Pencil .223 Wylde Mid Length Barrel

    Faxon Firearms Match Series 14.5" Pencil .223 Wylde Mid Length Barrel

    Regular Price $229.99 Special Price $159.99
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  2. PSA Guardsman-15 Barrel 8" 300 Blackout 1:7 Pistol-Length CL Phosphate

    PSA Guardsman-15 Barrel 8" 300 Blackout 1:7 Pistol-Length CL Phosphate

    $149.99
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  3. 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

    $159.99
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  4. 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

    $169.99
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  5. 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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  6. Faxon Firearms Match Rifle-Length 5R Button Rifled Heavy Fluted Barrel 6.5 Creedmoor 24", Black

    Faxon Firearms Match Rifle-Length 5R Button Rifled Heavy Fluted Barrel 6.5 Creedmoor 24", Black

    $371.99
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  7. Brownells Lightweight Mid-Length Barrel .223 Wylde 14.70", Black

    Brownells Lightweight Mid-Length Barrel .223 Wylde 14.70", Black

    Regular Price $198.99 Special Price $178.99
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  8. 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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  9. 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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  10. Wilson Combat Button Rifling Fluted Recon Tactical Barrel .300 AAC Blackout 16", Stainless

    Wilson Combat Button Rifling Fluted Recon Tactical Barrel .300 AAC Blackout 16", Stainless

    Rating:
    100%
    (1)
    $250.99
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  11. Wilson Combat Mid-Length Button Rifling Non-Fluted Ranger Barrel 6.8 SPC 16", Stainless

    Wilson Combat Mid-Length Button Rifling Non-Fluted Ranger Barrel 6.8 SPC 16", Stainless

    $220.99
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  12. Wilson Combat Mid-Length Button Rifling Fluted Recon Tactical Barrel 6.8 SPC 16", Stainless

    Wilson Combat Mid-Length Button Rifling Fluted Recon Tactical Barrel 6.8 SPC 16", Stainless

    $250.99
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  13. Wilson Combat Rifle-Length Button Rifling Fluted Super Sniper Barrel 6.5 Creedmoor 24", Stainless

    Wilson Combat Rifle-Length Button Rifling Fluted Super Sniper Barrel 6.5 Creedmoor 24", Stainless

    $294.99
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  14. Brownells Barrel 10mm 10.50", Black

    Brownells Barrel 10mm 10.50", Black

    Regular Price $156.99 Special Price $140.99
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  15. Brownells Rifle-Length Barrel 6.5 Grendel 24", Stainless Steel

    Brownells Rifle-Length Barrel 6.5 Grendel 24", Stainless Steel

    Regular Price $412.99 Special Price $371.99
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  16. Brownells Rifle-Length Barrel 6.5 Grendel 20", Stainless Steel

    Brownells Rifle-Length Barrel 6.5 Grendel 20", Stainless Steel

    Regular Price $354.99 Special Price $318.99
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  17. Faxon Firearms Duty Rifle-Length Button Rifled Big Gunner Barrel .308 Win 20", Black

    Faxon Firearms Duty Rifle-Length Button Rifled Big Gunner Barrel .308 Win 20", Black

    $224.99
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  18. Faxon Firearms Duty Mid-Length Button Rifled Big Gunner Barrel .308 Win 13.90", Black

    Faxon Firearms Duty Mid-Length Button Rifled Big Gunner Barrel .308 Win 13.90", Black

    $203.99
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  19. Faxon Firearms Duty Carbine-Length Button Rifled Gunner Big Bore Barrel .450 Bushmaster 16", Black

    Faxon Firearms Duty Carbine-Length Button Rifled Gunner Big Bore Barrel .450 Bushmaster 16", Black

    Regular Price $286.99 Special Price $257.99
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  20. Faxon Firearms Match Mid-Length 5R Rifled Heavy Fluted Barrel .223 Wylde 16", Black

    Faxon Firearms Match Mid-Length 5R Rifled Heavy Fluted Barrel .223 Wylde 16", Black

    Regular Price $317.99 Special Price $285.99
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  21. Faxon Firearms Match Mid-Length 5R Button Rifled Gunner Barrel .223 Wylde 13.90", Black

    Faxon Firearms Match Mid-Length 5R Button Rifled Gunner Barrel .223 Wylde 13.90", Black

    $199.99
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  22. Faxon Firearms Mid-Length Button Rifled Gunner Barrel w/Pinned Gas Block 5.56x45mm 14.50", Black

    Faxon Firearms Mid-Length Button Rifled Gunner Barrel w/Pinned Gas Block 5.56x45mm 14.50", Black

    $194.99
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  23. Faxon Firearms Carbine-Length Button Rifled Pencil Barrel w/Pinned Gas Block 5.56x45mm 10.50", Black

    Faxon Firearms Carbine-Length Button Rifled Pencil Barrel w/Pinned Gas Block 5.56x45mm 10.50", Black

    $186.99
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  24. 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 $219.99 Special Price $197.99
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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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