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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 653

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  1. Harrington & Richardson 20" M16A1 Pencil Barrel, 5.56, 1/7,Parkerized, CH Bore, Stripped

    Harrington & Richardson 20" M16A1 Pencil Barrel, 5.56, 1/7,Parkerized, CH Bore, Stripped

    Rating:
    100%
    (1)
    $194.99
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  2. 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%
    (1)
    $129.99
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  3. 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 $186.99 Special Price $167.99
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  4. 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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  5. Tacfire 9mm 16" Barrel, Nitride Black - BAR9MM-16-BN

    Tacfire 9mm 16" Barrel, Nitride Black - BAR9MM-16-BN

    Regular Price $109.99 Special Price $99.99
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  6. 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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  7. 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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  8. Wilson Combat Match Grade Fluted AR-15 20" .223 Wylde 1:8 Rifle Length, Bead Blasted Stainless

    Wilson Combat Match Grade Fluted AR-15 20" .223 Wylde 1:8 Rifle Length, Bead Blasted Stainless

    Regular Price $349.99 Special Price $314.99
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  9. Wilson Combat 5.56 18" Match Grade 6 Groove Barrel, Matte Bead Blasted Stainless - TR-556RCRG18FT8

    Wilson Combat 5.56 18" Match Grade 6 Groove Barrel, Matte Bead Blasted Stainless - TR-556RCRG18FT8

    Regular Price $326.99 Special Price $293.99
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  10. Ballistic Advantage Modern Series 5.56 12.5" Threaded Barrel, QPQ Corrosion Resistant - BABL556024M

    Ballistic Advantage Modern Series 5.56 12.5" Threaded Barrel, QPQ Corrosion Resistant - BABL556024M

    Rating:
    100%
    (1)
    Regular Price $169.99 Special Price $152.99
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  11. Daniel Defense .223 Rem/5.56 16" Stripped Mid-Length Barrel, Black Phosphate - 077-09173-018

    Daniel Defense .223 Rem/5.56 16" Stripped Mid-Length Barrel, Black Phosphate - 077-09173-018

    Regular Price $387.99 Special Price $348.99
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  12. Daniel Defense .223 Rem/5.56 14.5" Stripped Mid-Length Barrel, Black Phosphate - 077-19125-018

    Daniel Defense .223 Rem/5.56 14.5" Stripped Mid-Length Barrel, Black Phosphate - 077-19125-018

    Regular Price $387.99 Special Price $348.99
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  13. Daniel Defense .223 Rem/5.56 16" Stripped Mid-Length Barrel, Black Phosphate - 078-09136-018

    Daniel Defense .223 Rem/5.56 16" Stripped Mid-Length Barrel, Black Phosphate - 078-09136-018

    Regular Price $387.99 Special Price $348.99
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  14. Ballistic Advantage Premium Series 6.5 Crd 22" Rifle Barrel, Bead Blasted - BABL65CR03P

    Ballistic Advantage Premium Series 6.5 Crd 22" Rifle Barrel, Bead Blasted - BABL65CR03P

    $299.25
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  15. Ballistic Advantage Premium Series 6.5 Crd 20" Rifle Barrel, Bead Blasted - BABL65CR02P

    Ballistic Advantage Premium Series 6.5 Crd 20" Rifle Barrel, Bead Blasted - BABL65CR02P

    Regular Price $321.99 Special Price $289.99
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  16. Ballistic Advantage Modern Series .308 Win/7.62 16" Mid-Length Barrel, QPQ - BABL308003M

    Ballistic Advantage Modern Series .308 Win/7.62 16" Mid-Length Barrel, QPQ - BABL308003M

    Rating:
    100%
    (1)
    Regular Price $243.99 Special Price $218.99
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  17. Ballistic Advantage Modern AR-15 .300 Blackout 16" Pistol-Length, QPQ

    Ballistic Advantage Modern AR-15 .300 Blackout 16" Pistol-Length, QPQ

    Regular Price $190.99 Special Price $171.99
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  18. Ballistic Advantage Premium AR-15 Barrel 18" .223 Wylde Rifle-Length Bead Blasted

    Ballistic Advantage Premium AR-15 Barrel 18" .223 Wylde Rifle-Length Bead Blasted

    Rating:
    100%
    (1)
    Regular Price $285.99 Special Price $256.99
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  19. Ballistic Advantage Modern Series AR-15 Barrel 18" .223 Rifle-Length, QPQ

    Ballistic Advantage Modern Series AR-15 Barrel 18" .223 Rifle-Length, QPQ

    Regular Price $195.99 Special Price $175.99
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  20. Ballistic Advantage Modern Series AR-15 Barrel 16" .223 Mid-Length QPQ

    Ballistic Advantage Modern Series AR-15 Barrel 16" .223 Mid-Length QPQ

    Regular Price $185.99 Special Price $166.99
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  21. Ballistic Advantage Modern Series .223 Rem/5.56 14.5" Mid-Length Barrel, QPQ - BABL556010M

    Ballistic Advantage Modern Series .223 Rem/5.56 14.5" Mid-Length Barrel, QPQ - BABL556010M

    Regular Price $169.99 Special Price $152.99
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  22. CMMG .300 Blackout 8" Medium Taper Barrel Sub-Assembly, Salt Bath Nitride Black - 30D810A

    CMMG .300 Blackout 8" Medium Taper Barrel Sub-Assembly, Salt Bath Nitride Black - 30D810A

    Regular Price $188.99 Special Price $169.99
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  23. CMMG .300 Blackout 16.1" Medium Taper Barrel Sub-Assembly, Salt Bath Nitride Black - 30D120A

    CMMG .300 Blackout 16.1" Medium Taper Barrel Sub-Assembly, Salt Bath Nitride Black - 30D120A

    Rating:
    100%
    (1)
    Regular Price $225.99 Special Price $202.99
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  24. CMMG .300 Blackout 16.1" Multi Role Barrel Sub-Assembly, Salt Bath Nitride Black - 30DF80A

    CMMG .300 Blackout 16.1" Multi Role Barrel Sub-Assembly, Salt Bath Nitride Black - 30DF80A

    Regular Price $225.99 Special Price $202.99
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Items 169-192 of 653

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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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