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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 169-192 of 654

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  1. Rosco Manufacturing Bloodline Barrel 556NATO 14.5" Black 1:7 BL-145-M4-556-7-C

    Rosco Manufacturing Bloodline Barrel 556NATO 14.5" Black 1:7 BL-145-M4-556-7-C

    Rating:
    100%
    (1)
    Regular Price $180.99 Special Price $162.99
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  2. Rosco Bloodline Barrel 300 Blackout 10.5" Black 1:7 Heavy Profile - BL105HB300BLK7P

    Rosco Bloodline Barrel 300 Blackout 10.5" Black 1:7 Heavy Profile - BL105HB300BLK7P

    Regular Price $181.99 Special Price $163.99
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  3. CMMG Barrel 5.7X28mm 8" Black AR Rifles - 57D88C3

    CMMG Barrel 5.7X28mm 8" Black AR Rifles - 57D88C3

    Regular Price $509.99 Special Price $458.99
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  4. Daniel Defense Light Weight Barrel 556NATO 14.5" Black 1:7 Mid Length Gas System

    Daniel Defense Light Weight Barrel 556NATO 14.5" Black 1:7 Mid Length Gas System

    Regular Price $364.99 Special Price $327.99
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  5. CMMG Barrel 5.7X28mm 5" Black AR Rifles - 57DBC33

    CMMG Barrel 5.7X28mm 5" Black AR Rifles - 57DBC33

    Regular Price $479.99 Special Price $431.99
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  6. Ballistic Advantage Modern Series Barrel 308 Winchester 12.5" BABL308008M Bead

    Ballistic Advantage Modern Series Barrel 308 Winchester 12.5" BABL308008M Bead

    Rating:
    100%
    (1)
    $199.50
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  7. Diamondback Firearms 300 Blackout 10" Black 1:8 Pistol Length Gas System 300P10H50B8R

    Diamondback Firearms 300 Blackout 10" Black 1:8 Pistol Length Gas System 300P10H50B8R

    Rating:
    40%
    (3)
    Regular Price $90.99 Special Price $80.99
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  8. Wilson Combat Recon AR-15 16" 1:8 Fluted Stainless Barrel - TR556RCIG16FT8

    Wilson Combat Recon AR-15 16" 1:8 Fluted Stainless Barrel - TR556RCIG16FT8

    Regular Price $360.99 Special Price $324.99
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  9. Wilson Combat Recon AR-15 16" 1:8 Stainless Bead Blasted Barrel, 5.56 NATO - TR556RCIG16RT8

    Wilson Combat Recon AR-15 16" 1:8 Stainless Bead Blasted Barrel, 5.56 NATO - TR556RCIG16RT8

    Rating:
    90%
    (2)
    Regular Price $300.99 Special Price $270.99
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  10. Q Barrel, Light Profile, 8", 1:3 Twist, 8.6 Blackout, fits Q Fix, Matte Stainless Finish, Gray

    Q Barrel, Light Profile, 8", 1:3 Twist, 8.6 Blackout, fits Q Fix, Matte Stainless Finish, Gray

    Regular Price $572.99 Special Price $515.99
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  11. Q 300 Blackout Light Profile 7" 1:5 Twist Barrel for Honey Badger - BARRELHB3007

    Q 300 Blackout Light Profile 7" 1:5 Twist Barrel for Honey Badger - BARRELHB3007

    Regular Price $443.99 Special Price $425.00
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  12. PSA "Sabre" FN CHF CL 13.7" Mid-Length 1:7 5.56 Nato Barrel

    PSA "Sabre" FN CHF CL 13.7" Mid-Length 1:7 5.56 Nato Barrel

    Rating:
    100%
    (1)
    $299.99
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  13. Harrington & Richardson Retro M16A1 Stripped Barrel Assembly

    Harrington & Richardson Retro M16A1 Stripped 20" Barrel Assembly

    Rating:
    100%
    (5)
    $239.99
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  14. Harrington & Richardson RETRO 14.7" AR-15 Upper Pencil Barrel w/ 1:7 Twist, GM-M61

    H&R RETRO 14.7" AR-15 Upper Pencil Barrel w/ 1:7 Twist

    $199.99
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  15. Harrington & Richardson Retro 723 14.7" AR-15 Upper Barrel Assembly 5.56 1:7 Carbine Length

    Harrington & Richardson Retro 723 14.7" AR-15 Barrel Assembly 5.56 1:7 Carbine Length

    Rating:
    95%
    (4)
    $249.99
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  16. PSA 7" PCC 9mm 1/10 Nitride Tri-Lug Barrel With Thread Protector Thread Pitch: 1/2x28

    PSA 7" PCC 9mm 1/10 Nitride Tri-Lug Barrel With Thread Protector Thread Pitch: 1/2x28

    Rating:
    100%
    (2)
    $129.99
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  17. PSA 16" PCC 9mm 1/10 Nitride Barrel Thread Pitch: 1/2x28

    PSA 16" PCC 9mm 1/10 Nitride Barrel Thread Pitch: 1/2x28

    Rating:
    40%
    (1)
    $119.99
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  18. PSA 10.5" PCC 9mm 1/10 Melonite Barrel Thread Pitch: 1/2x28

    PSA 10.5" PCC 9mm 1/10 Melonite Barrel Thread Pitch: 1/2x28

    Rating:
    60%
    (2)
    $109.99
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  19. PSA 8" PCC 9mm 1/10 Nitride Barrel Thread Pitch: 1/2x28

    PSA 8" PCC 9mm 1/10 Nitride Barrel Thread Pitch: 1/2x28

    Rating:
    100%
    (1)
    $99.99
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  20. PSA 4" PCC 9mm 1/10 Nitride Barrel Thread Pitch: 1/2x28

    PSA 4" PCC 9mm 1/10 Nitride Barrel Thread Pitch: 1/2x28

    Rating:
    100%
    (1)
    $89.99
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  21. CMMG 350 Legend 16.1" Barrel w/ 1/2-28 Thread & 1:16 Twist, Black SBN Finish - 35D5F0A

    CMMG 350 Legend 16.1" Barrel w/ 1/2-28 Thread & 1:16 Twist, Black SBN Finish - 35D5F0A

    Regular Price $219.99 Special Price $197.99
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  22. Ballistic Advantage Modern Series .300 Blackout 8" Threaded Barrel, QPQ Corrosion Resistant - BABL300001M

    Ballistic Advantage Modern Series .300 Blackout 8" Threaded Barrel, QPQ Corrosion Resistant - BABL300001M

    Rating:
    60%
    (1)
    Regular Price $125.99 Special Price $112.99
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  23. Wilson Combat .300 Blackout 16" Match Grade 6 Groove Barrel, Matte Bead Blasted Stainless - TR-300RCPG16RT7

    Wilson Combat .300 Blackout 16" Match Grade 6 Groove Barrel, Matte Bead Blasted Stainless - TR-300RCPG16RT7

    Rating:
    40%
    (2)
    Regular Price $286.99 Special Price $257.99
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  24. Wilson Combat .300 Blackout 8" Match Grade 6 Groove Barrel, Matte Bead Blasted Stainless - TR-300SBRPG8RT7

    Wilson Combat .300 Blackout 8" Match Grade 6 Groove Barrel, Matte Bead Blasted Stainless - TR-300SBRPG8RT7

    Regular Price $290.99 Special Price $261.99
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Items 169-192 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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