Ballistic Advantage Ops 12 Performance Series 18" 5.56 NATO SPR Contour 1:7 Nitride Barrel - Rifle - 1/2x28

Manufactured by Ballistic Advantage
SKU: BABL556021F
MPN: BABL556021F
Manufactured by Ballistic Advantage
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$194.75 $205.00

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If you are looking to build a high-quality precision AR-15, the Ballistic Advantage 18” SPR barrel might just be the one for you. It is constructed from 4150 chrome moly vanadium steel and has a quench polish quench corrosion resistant finish. The performance series of barrels feature a nickel boron coated extended M4 feed ramp extension for reliable feeding. The SPR barrel profile is designed for accuracy as the chamber portion up to the gas block is thick decreasing barrel vibration. However, it is tapered after the gas block to help reduce weight at the muzzle end. The muzzle is threaded 1/2x28, so you can attach muzzle brakes, flash hiders, or suppressors to the end of the barrel. The gas block diameter is .750” and is longer to accommodate the OPS Inc 12th model collar and suppressor.

  • Great option for AR-15 DMR build
  • Designed to work with OPS Inc. 12th model collar and suppressor
  • 1:7 twist rate for stabilizing heavier match rounds
  • QPQ Nitride finish for corrosion resistance
  • Nickel Boron M4 barrel extension
  • Threaded for all 5.56 and .223 muzzle devices
  • Rifle length gas system for reliable function
  • Guaranteed sub MOA accuracy with match grade ammunition
  • High pressure and magnetic particle inspected

Every barrel that leaves the Ballistic Advantage assembly line is high pressure and magnetic particle inspected to ensure every dimension is in spec. They are inspected because they believe in providing customers with a barrel that can shoot one inch groups at 100 yards.

Ballistic Advantage proudly produces quality AR barrels that exceed very stringent demands. Their AR-15 barrels surpass the competition in precision and aesthetics. For barrels that deliver round after round consistently and accurately, choose Ballistic Advantage.
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Barrel CoatingQPQ Nitride
Barrel ContourSPR
Barrel Length18
Barrel LiningQPQ Nitride
Barrel Material4150 Chrome Moly Vanadium Steel
BrandBallistic Advantage
Caliber Gauge5.56 NATO
Feed RampsM4
Gas Seat Diameter.750
Gas System LengthRifle
Thread Pattern1/2 X 28
Twist Rate1:7
Weight41 oz.

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see

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