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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 145-168 of 654

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  1. 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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  2. 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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  3. 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 $124.95 Special Price $104.95
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  4. Angstadt Arms Barrel 9mm 6" Black 1/2x28 TPI Thread AR Rifles

    Angstadt Arms Barrel 9mm 6" Black 1/2x28 TPI Thread AR Rifles

    Regular Price $120.99 Special Price $108.99
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  5. 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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  6. 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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  7. Rosco Bloodline 12.5" Barrel, 5.56x45mm - SPBL125556BCGGTCNGB001

    Rosco Bloodline 12.5" Barrel, 5.56x45mm - SPBL125556BCGGTCNGB001

    Rating:
    100%
    (1)
    Regular Price $347.99 Special Price $312.99
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  8. 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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  9. FN America AR-15 10.5" Barrel, 1:7 Twist Button Broached, Black - 20100037

    FN America AR-15 10.5" Barrel, 1:7 Twist Button Broached, Black - 20100037

    Regular Price $310.99 Special Price $279.99
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  10. FN America AR-15 18" Barrel 1:7 Twist Button Broached, Black - 20100042

    FN America AR-15 18" Barrel 1:7 Twist Button Broached, Black - 20100042

    Regular Price $310.99 Special Price $279.99
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  11. FN America AR-15 16" Barrel 556NATO 1:7 Twist Button Broached, Black - 20100039

    FN America AR-15 16" Barrel 556NATO 1:7 Twist Button Broached, Black - 20100039

    Regular Price $310.99 Special Price $279.99
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  12. Ballistic Advantage Classic Series 10.3" AR-15 Barrel, 5.56x45mm - BABL557103MC

    Ballistic Advantage Classic Series 10.3" AR-15 Barrel, 5.56x45mm - BABL557103MC

    Regular Price $179.99 Special Price $161.99
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  13. Wilson Combat Super Sniper, Fluted, 308 Winchester, 1:10 Twist, Glass Bead Finish, Stainless

    Wilson Combat Super Sniper, Fluted, 308 Winchester, 1:10 Twist, Glass Bead Finish, Stainless

    Regular Price $400.99 Special Price $362.99
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  14. Ballistic Advantage Premium Black Series AR-15 223 Wylde 20" Barrel - BABL223022PQ

    Ballistic Advantage Premium Black Series AR-15 223 Wylde 20" Barrel - BABL223022PQ

    Regular Price $275.99 Special Price $247.99
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  15. Diamondback Firearms AR-10 308 Win 16" 1:10 Twist Barrel, Black Nitride Finish - 308R18M50B10R

    Diamondback Firearms AR-10 308 Win 16" 1:10 Twist Barrel, Black Nitride Finish - 308R18M50B10R

    Regular Price $152.99 Special Price $136.99
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  16. Rosco Bloodline AR-15 16" 556 Heavy Barrel, 1:7 Twist - BL16HB5567C

    Rosco Bloodline AR-15 16" 556 Heavy Barrel, 1:7 Twist - BL16HB5567C

    Regular Price $193.99 Special Price $173.99
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  17. Ballistic Advantage Premium Black Series, Barrel, 6.5 Creedmoor, 18", Black, 1:8

    Ballistic Advantage Premium Black Series, Barrel, 6.5 Creedmoor, 18", Black, 1:8

    Regular Price $317.99 Special Price $285.99
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  18. Ballistic Advantage Premium Black Series, Barrel, 308 Winchester, 18", Matte

    Ballistic Advantage Premium Black Series, Barrel, 308 Winchester, 18", Matte

    Regular Price $317.99 Special Price $285.99
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  19. Rosco Bloodline AR-15 16" 556 Barrel, 1:7 Twist - BL16M45567C

    Rosco Bloodline AR-15 16" 556 Barrel, 1:7 Twist - BL16M45567C

    Regular Price $185.99 Special Price $166.99
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  20. Rosco Bloodline AR-15 16" 300 Blackout Heavy Barrel, 1:8 Twist - BL16HB300BLK8P

    Rosco Bloodline AR-15 16" 300 Blackout Heavy Barrel, 1:8 Twist - BL16HB300BLK8P

    Regular Price $206.99 Special Price $185.99
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  21. Ballistic Advantage Premium Black Series, Barrel, 6.5 Creedmoor, 16", Black, 1:8

    Ballistic Advantage Premium Black Series, Barrel, 6.5 Creedmoor, 16", Black, 1:8

    Regular Price $306.99 Special Price $275.99
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  22. Ballistic Advantage Premium Black Series, Barrel, 308 Winchester, 16", Matte

    Ballistic Advantage Premium Black Series, Barrel, 308 Winchester, 16", Matte

    Regular Price $306.99 Special Price $275.99
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  23. Diamondback Firearms AR-10 308 Win 16" 1:10 Twist Barrel, Black Nitride Finish - 308M16L50B10R

    Diamondback Firearms AR-10 308 Win 16" 1:10 Twist Barrel, Black Nitride Finish - 308M16L50B10R

    Regular Price $158.99 Special Price $142.99
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  24. Diamondback Firearms 308 Winchester 13.5" Black 1:10 Mid Length Gas System 308M135M50B10R

    Diamondback Firearms 308 Winchester 13.5" Black 1:10 Mid Length Gas System 308M135M50B10R

    Regular Price $155.99 Special Price $139.99
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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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