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AR-15 Barrels

Improve your accuracy and upgrade your rifle with a new AR-15 barrel from GunMag Warehouse. From heavy barrels for shot to shot consistency to pencil and fluted barrels for weight savings, we’ve got you covered with the best AR-15 barrels that deliver premium, match-grade accuracy. Whether you prefer carbine, midlength, or rifle-length barrels, we offer top options in popular chamberings like 5.56 NATO, .223 Wylde, and .300 Blackout. Further, we have plenty of options in both CMV and stainless steel for optimal performance and easy cleanup, as well as threaded barrels to attach your preferred muzzle device.

  1. PROOF Research AR-15 11.5" Carbine-Length Gas .223 Wylde 1:7 Stainless Steel Barrel
    PROOF Research AR-15 .223 Wylde Stainless Steel Barrel
    $629.99 $749.99 $569.99 $649.99 Save $100.00
  3. PROOF Research AR-15 14.5" Intermediate-Length Gas 6mm ARC 1:7.5 Stainless Steel Barrel
    PROOF Research AR-15 6mm ARC 1:7.5 Stainless Steel Barrel
    $749.99 $649.99 Save $100.00
  4. PROOF Research AR-15 12.5" Pistol-Length Gas .300 BLK 1:7 Stainless Steel Barrel
    PROOF Research AR-15 .300 BLK Stainless Steel Barrel
    $629.99 $749.99 $569.99 $649.99 Save $100.00
  8. Ballistic Advantage Premium AR-15 16" Mid-Length Gas 6.5 Grendel 1:8 Stainless Steel Barrel
    Ballistic Advantage Premium Series AR-15 6.5 Grendel 1:8 SS Barrel
    $204.99 $305.99 $204.99 $289.99 Save $16.00
  9. Rosco Purebred AR-15 .223 Wylde Stainless Steel Barrel
    Rosco Purebred AR-15 .223 Wylde Stainless Steel Barrel
    $221.99 $240.99 $198.99 $225.99 Save $24.00
  14. Odin Works AR-15 21 XL Rifle-Length Gas 6mm ARC 1:7.5 Stainless Steel Barrel with .875 Adjustable Gas Block - Stainless
    Odin Works AR-15 21 XL Rifle-Length Gas 6mm ARC 1:7.5 Stainless Steel Barrel with .875 Adjustable Gas Block
    Out of stock
    $399.99 $454.99 $379.99 $434.99 Save $20.00
  15. Odin Works AR-15 5" 9mm 1:10 Stainless Steel Barrel
    Odin Works AR-15 9mm 1:10 Stainless Steel Barrel
    Out of stock
    $144.99 $234.99 $136.99 $222.99 Save $12.00
  17. Odin Works AR-15 8 Pistol-Length Gas .300 Blackout 1:8 Stainless Steel Barrel w/ Tunable Gas Block
    Odin Works AR-15 .300 Blackout 1:8 Stainless Steel Barrel w/ Tunable Gas Block
    Out of stock
    $245.99 $325.99 $232.99 $308.99 Save $17.00
  21. Odin Works AR-15 20 Rifle-Length Gas 6.5 Grendel 1:8 Stainless Steel Barrel with Tunable Gas Block
    Odin Works AR-15 6.5 Grendel 1:8 Stainless Steel Barrel w/ Tunable Gas Block
    Out of stock
    $335.99 $360.99 $318.99 $342.99 Save $18.00
  22. Odin Works ULTRAlite AR-15 12 Carbine-Length Gas 6.5 Grendel 1:8 Stainless Steel Barrel with Tunable Gas Block And BCG
    Odin Works AR-15 6.5 Grendel 1:8 Stainless Steel Barrel w/ Tunable Gas Block and BCG
    Out of stock
    $440.99 $455.99 $418.99 $432.99 Save $23.00
  23. Odin Works AR-15 18 Intermediate-Length Gas 6.5 Grendel 1:8 Stainless Steel Barrel with Tunable Gas Block
    Odin Works AR-15 18" Intermediate-Length Gas 6.5 Grendel 1:8 Stainless Steel Barrel w/ Tunable Gas Block
    Out of stock
    $360.99 $390.99 $342.99 $370.99 Save $20.00
  24. Odin Works AR-15 7.5 Pistol-Length Gas .223 Wylde 1:8 Stainless Steel Barrel w/ Tunable Gas Block
    Odin Works AR-15 .223 Wylde 1:8 Stainless Steel Barrel w/ Tunable Gas Block
    Out of stock
    $205.99 $345.99 $194.99 $327.99 Save $18.00
  25. Odin Works AR-15 16.1 Intermediate-Length Gas .223 Wylde 1:8 Stainless Steel Barrel with Tunable Gas Block
    Odin Works AR-15 Intermediate-Length Gas .223 Wylde 1:8 Stainless Steel Barrel w/ Tunable Gas Block
    Out of stock
    $345.99 $327.99 Save $18.00
  26. Rosco Purebred AR-15 16" Mid-Length Gas 6mm ARC 1:7.5 Stainless Steel Barrel
    Rosco Purebred AR-15 6mm ARC 1:7.5 Stainless Steel Barrel
    Out of stock
    $250.99 $270.99 $219.99 $243.99 Save $31.00
  27. Watchtower - F-1 AR-15 16" Mid-Length Gas .223 Wylde 1:8 Spiral Fluted Stainless Steel Barrel
    Watchtower - F-1 AR-15 16" Mid-Length Gas .223 Wylde 1:8 Spiral Fluted SS Barrel
    Out of stock
    $279.99 $258.99 Save $21.00
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