Ballistic Advantage Modern Series 5.56 Barrel Gov. Carbine - 11.5"

Manufactured by Ballistic Advantage
SKU: BABL556023M
MPN: BABL556023M
Manufactured by Ballistic Advantage
15 Reviews

In Stock

Standard orders will ship out same day if ordered by 3:30pm CST. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination.



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.

Chambered in 5.56 NATO, this Ballistic Advantage 11.5” barrel is a great option for building a short barrel rifle or even a pistol. This modern series barrel features all the qualities you would want for a short carbine style build. It features a carbine length gas system for optimal reliability with the commonly used 62 grain projectiles which are also optimal with the 1:7 twist rate. The barrel is made from 4150 Chrome Moly Vanadium and is fully salt bath Nitride finished inside and out for long term durability. The government profile is thin behind the gas block shelf to reduce weight but then gets larger to accommodate .750” gas blocks. Threaded 1/2x28, you can easily attach your favorite .223/5.56 muzzle device whether it is a flash hider or muzzle brake. If you are building a high quality AR-15, you can’t go wrong with the Ballistic Advantage Modern Series 5.56 barrel.

  • 11.5” barrel length with government profile
  • Machined from 4150 Chrome Moly Vanadium
  • QPQ salt bath Nitride finish
  • Carbine length gas system with .750” shelf
  • 1:7 twist rate optimal with 62 grain bullets
  • 1/2x28 threaded
  • M4 feed ramp extension

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 ContourGovernment
Barrel Length11.5
Barrel LiningSalt Bath Nitride
Barrel Material4150 Chrome Moly Steel
BrandBallistic Advantage
Caliber Gauge5.56 NATO
Feed RampsM4
Gas Seat Diameter.750
Gas System LengthCarbine
Thread Pattern1/2 X 28
Twist Rate1:7
Weight20.5 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

15 reviews

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Rock solid performer.

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My first BA barrel, picked it up on sale so I didn’t expect to much from it. What I found out is this is a very accurate barrel. More accurate than I am. I was getting 1.6 inch groups @ 100 yds shooting on a sandbag. Tight fit in my Radical upper and fit and finish appears fantastic. I really cannot say anything negative about this barrel. I don’t see how you could do better for the cost. It is every bit as accurate as my DD 10.3 inch barrel.

Smooth operation!

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Very Accurate and smooth action



The barrel is top! purchased to for my build and everything made well, barrel is nicely finished and fit my receiver nice and snug as it should. Took it to the range and about .5 moa within 50m using Winchester range ammo. Works exceptionally well, gas port seems right as I installed gas block as perfect as can be and cases were ejecting at the 3 o’clock precisely. Would highly recommend!

Perfect Barrel

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Perfect barrel. Got under 1 moa at 100 yds. Fit and finish is perfect, no complaints!

Great Barrel

by -

BA is still producing this model just fine, Primary Arms is a bit swamped but still the best in the business.

Great barrel

by -

This bad boy shoots 0.9 inch groups with surplus ammo.

Quality barrel.

by -

The first and finish of this barrel is top-tier for sure. The barrel looks amazing and has zero inspections on the finish. Threads are perfect and so is the extension. I have five of their barrels and I have had zero problems with them and find them quite accurate too (for their purpose). Best bang for the buck, no doubt. I highly recommend them.

Great barrel

by -

Great barrel for the price. I'm using this in a blaster I built. Not sure about accuracy. Honestly I don't really care. This is my 3rd BA barrel. Never had an issue with them. Great price and service from PA, as always.

All the Pews

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You’d be hard pressed to find a better barrel and there are none for the price!

Good company. Good products!

by -

I have been buying a lot of AR parts.
<br>A good portion from this company, i have always found it a pleasure. And the customer service has been outstanding.
<br> When dead people vote a American President into office. We now apparently have a zombie problem.
<br> So build guns. Lots and lots of guns!!