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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 121-144 of 653

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  1. Diamondback Firearms Barrel - Black, Unleash Precision and Performance - 762X39C10M50B95R

    Diamondback Firearms Barrel - Black, Unleash Precision and Performance - 762X39C10M50B95R

    Regular Price $93.99 Special Price $83.99
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  2. Diamondback Firearms Barrel, Stainless - 65CR20M416SS8FR

    Diamondback Firearms Barrel, Stainless - 65CR20M416SS8FR

    Regular Price $167.99 Special Price $150.99
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  3. Diamondback Firearms Barrel - Black, Unleash Precision and Performance - 762X39C16M50B95R

    Diamondback Firearms Barrel - Black, Unleash Precision and Performance - 762X39C16M50B95R

    Rating:
    100%
    (1)
    Regular Price $105.99 Special Price $94.99
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  4. Diamondback Firearms Barrel - Black, Unleash Precision and Performance - 762X39P7H50B95R

    Diamondback Firearms Barrel - Black, Unleash Precision and Performance - 762X39P7H50B95R

    Regular Price $97.99 Special Price $87.99
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  5. Diamondback Firearms Barrel - Black, Unleash Precision and Performance - 556C16MF50B8R

    Diamondback Firearms Barrel - Black, Unleash Precision and Performance - 556C16MF50B8R

    Rating:
    100%
    (1)
    Regular Price $96.99 Special Price $86.99
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  6. Diamondback Firearms Barrel - Black, Unleash Precision and Performance - 556P55H50B8R

    Diamondback Firearms Barrel - Black, Unleash Precision and Performance - 556P55H50B8R

    Rating:
    100%
    (1)
    Regular Price $97.99 Special Price $87.99
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  7. Diamondback Firearms Barrel - Black, Unleash Precision and Performance - 300P85H50B8R

    Diamondback Firearms Barrel - Black, Unleash Precision and Performance - 300P85H50B8R

    Rating:
    100%
    (4)
    Regular Price $81.99 Special Price $72.99
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  8. Diamondback Firearms Barrel - Black, Unleash Precision and Performance - 556C16M50B8R

    Diamondback Firearms Barrel - Black, Unleash Precision and Performance - 556C16M50B8R

    Regular Price $114.99 Special Price $102.99
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  9. CMMG Barrel Sub Assembly for AR-15/MK4, Black - 60D100C

    CMMG Barrel Sub Assembly for AR-15/MK4, Black - 60D100C

    Regular Price $182.99 Special Price $155.99
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  10. Ballistic Advantage Modern AR-15 Barrel -Unleash Precision in Sleek Black Design - BABL556003M

    Ballistic Advantage Modern AR-15 Barrel -Unleash Precision in Sleek Black Design - BABL556003M

    Rating:
    93%
    (3)
    Regular Price $103.99 Special Price $92.99
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  11. Ballistic Advantage Premium Barrel for AR-15, Stainless - BABL223017P

    Ballistic Advantage Premium Barrel for AR-15, Stainless - BABL223017P

    Regular Price $211.99 Special Price $190.99
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  12. Proof Research AR-Type Barrel 12.50" for AR-Style, Natural - 100523

    Proof Research AR-Type Barrel 12.50" for AR-Style, Natural - 100523

    Regular Price $1,109.99 Special Price $999.99
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  13. Proof Research AR-Type Barrel 11.50" for AR-Style, Stainless - 100387

    Proof Research AR-Type Barrel 11.50" for AR-Style, Stainless - 100387

    $569.99
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  14. Proof Research 16" Natural AR-Type Barrel - Unmatched Precision and Versatility - 101261

    Proof Research 16" Natural AR-Type Barrel - Unmatched Precision and Versatility - 101261

    Regular Price $1,109.99 Special Price $999.99
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  15. Proof Research 18" Natural AR-Type Barrel - Optimal Precision and Performance - 100028

    Proof Research 18" Natural AR-Type Barrel - Optimal Precision and Performance - 100028

    Regular Price $1,109.99 Special Price $999.99
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  16. Odin AR-15 300 Blackout 6.1" Threaded Barrel - B30016PTGBLK

    Odin AR-15 300 Blackout 6.1" Threaded Barrel - B30016PTGBLK

    Regular Price $364.99 Special Price $327.99
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  17. Battle Arms Lightweight 9mm 5.25" Barrel 1/2x36 Threaded - ABBL5.25T9MM110BN

    Battle Arms Lightweight 9mm 5.25" Barrel 1/2x36 Threaded - ABBL5.25T9MM110BN

    Regular Price $134.99 Special Price $115.99
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  18. Q Barrel, Light Profile, 12", 1:3 Twist, 8.6 Blackout, fits Q Fix, Matte Stainless Finish, Gray

    Q Barrel, Light Profile, 12", 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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  19. FN America AR-15 16" Barrel 1:7 Twist Button Broached, Black - 20100046

    FN America AR-15 16" Barrel 1:7 Twist Button Broached, Black - 20100046

    $279.00
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  20. FN Barrel 556NATO 14.5" Black Hammer Forged Carbine AR Rifles

    FN Barrel 556NATO 14.5" Black Hammer Forged Carbine AR Rifles

    Regular Price $388.99 Special Price $349.99
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  21. FN Barrel 556NATO 14.7" Black Hammer Forged Carbine AR Rifles

    FN Barrel 556NATO 14.7" Black Hammer Forged Carbine AR Rifles

    Regular Price $388.99 Special Price $349.99
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  22. Rosco Bloodline 10.5" Barrel, 5.56x45mm - SPBL105556BCGGTCNGB001

    Rosco Bloodline 10.5" Barrel, 5.56x45mm - SPBL105556BCGGTCNGB001

    Rating:
    100%
    (1)
    Regular Price $338.99 Special Price $304.99
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  23. Rosco Bloodline 12.5" Barrel, 5.56x45mm - SPBL125556BCGGTCNGB001

    Rosco Bloodline 12.5" Barrel, 5.56x45mm - SPBL125556BCGGTCNGB001

    Regular Price $347.99 Special Price $312.99
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  24. FN America AR-15 16" Barrel 1:7 Twist Button Broached, Black - 20100041

    FN America AR-15 16" Barrel 1:7 Twist Button Broached, Black - 20100041

    Regular Price $310.99 Special Price $279.99
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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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