Ballistic Advantage 5.56 Barrel Modern Series Pistol Length Nitride - 7.5"

Manufactured by Ballistic Advantage
SKU: BABL556001M
MPN: BABL556001M
Manufactured by Ballistic Advantage
7 Reviews
$109.25 $115.00

Out of Stock



The National Firearms Act regulates the configurations of some firearms assembled with barrels under 16” long. Know the NFA laws in your state before purchasing this item.

This Ballistic Advantage 5.56 barrel from their modern series line-up features the Distinct Rigid Pattern (DRP) contour that tapers toward the muzzle to reduce weight without losing rigidity. Machined from 41V50 chrome moly vanadium steel provides a long barrel life and the salt bath Nitride provides excellent corrosion resistance. Every Ballistic Advantage barrel is guaranteed to give sub Minute of Angle accuracy with match grade ammunition. This 7.5” 5.56 AR-15 barrel with pistol length gas system is ready to accept any .750” gas block. Combined with an adjustable gas block, you will be able to build the ultimate suppressed SBR or pistol.

  • Machined from 41V50 Chrome Moly Vanadium Steel
  • Salt bath Nitride finish
  • Tapered profile reduces weight without sacrificing rigidity
  • Threaded 1/2x28 for suppressor use or another muzzle device
  • Pistol length gas system and 1:7 twist
  • Weight: 17.0 oz

This 7.5” Ballistic Advantage 5.56 NATO barrel is rifled with a 1:7 twist rate optimal for heavier projectiles and the pistol length gas system ensures reliable function. Threaded 1/2x28 for your favorite muzzle device or suppressor.

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 CoatingSalt Bath Nitride
Barrel ContourDistinct Rigid Pattern
Barrel Length7.5
Barrel Material4150 Chrome Moly Steel
BrandBallistic Advantage
Caliber Gauge5.56 NATO
Feed RampsM4
Gas Seat Diameter.750
Gas System LengthPistol
Manufacturer.Ballistic Advantage
Thread Pattern1/2 X 28
Twist Rate1:7
Weight17 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

Ratings & Reviews

7 reviews

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so far so good


i had received my barrel yesterday and i installed it with no problems i took it out put 50 rounds thru it and ran like a champ no hiccups.. this is my first time ever putting one of these together.

Great barrel.

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Great barrel. 500 rds without a single failure. I purposely fed it low quality ammo that 2 of my other rifles couldn't digest. She gobbled it up and begged for more. Thinking about replacing other barrels with this one.

Fireballs and earplugs.

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Looking to build something louder than a 50 and shoots giant fireballs? This is the baby for you! Couple hundred rounds down the pipe and this baby ar is now my favorite.


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This 7.5 inch barrel fit, functioned and performs as well as I can hope! Would buy again if needed for another build!!!


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Awesome barrel, great quality! Highly recommended

Good quality

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Only a few shots into a home defense build and is meeting all expectations.

Top Shot

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First off… if you shopped primary arms before, you know your in the right place. Secondly… you might not know this but Aero Precision is the parent company of Ballistic Advantage. Ive heard horror stories about 7” barrels being under gassed or over gassed, needing a special H2 buffer. Not the case here, as im using standard carbine buffer. That barrel doesn’t know when to quit. With all ive said, you know you cant go wrong here. Thx Primary and Ballistic, as you are a match made in Heaven !!!!