Barrel PartsBallistic AdvantageSold by Brownells

Ballistic Advantage

Cold Hammer Forged 5.56x45 Carbine Barrels W/Lo Pro For Ar-15 - 5.56 Nato 11.5'''' 1-7 Hanson Carbine Lopro Chrome-Line Thread

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

5.56 Nato

Chambered 11.5-inch cold hammer forged

Machined From

A manganese phosphate finish

Chrome-lined Bore

M4 feed ramp extension

Hp Mpi

Tested

Ba Hanson

Pinned lo-pro gas block

$285.00
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SKU: 430108647

Overview

Built for AR-15 setups that need a compact 11.5-inch 5.56 NATO barrel, this Ballistic Advantage Hanson Series option is aimed at short-barreled rifle and pistol configurations where a lo-pro gas block is part of the setup. It features a cold hammer forged construction, chrome-lined bore, manganese phosphate finish, and an M4 feed ramp extension, with HP and MPI testing noted in the product data. The included pinned lo-pro gas block simplifies the gas system arrangement, while the Hanson profile gives the barrel a specific contour within the series. It is not intended for use with aftermarket piston kits, so it suits builders planning around a conventional direct-impingement configuration.

Why Hunters Choose the Ballistic Advantage

5.56 Nato

Chambered 11.5-inch barrel for compatible

Cold Hammer

Forged construction from CrMoV steel

Chrome-lined Bore

Manganese phosphate finish

Includes M4

Feed ramp extension and pinned

Hp Mpi

Tested for added verification

Key Features

  • 5.56 NATO chambered 11.5-inch cold hammer forged barrel for AR-15 builds
  • Machined from CrMoV steel with a manganese phosphate finish
  • Chrome-lined bore and M4 feed ramp extension
  • HP and MPI tested
  • BA Hanson profile with pinned lo-pro gas block
  • Not designed to work with aftermarket piston kits

Best Used For

  • Hunters building a compact 5.56 NATO AR-15 setup for registered SBR or pistol configurations.
  • Users wanting an 11.5-inch barrel with a pinned lo-pro gas block included.
  • Builders looking for a Hanson Series barrel with M4 feed ramp extension.
  • Owners who need a chrome-lined, HP and MPI tested barrel from Ballistic Advantage.

Specifications

Barrel Length11.5 inch
Barrel TypeCold Hammer Forged
Blade Finishmanganese phosphate finish
Borechrome lined
Caliber5.56 NATO
Compatibility Notenot designed to work with aftermarket piston kits
Feed Ramp ExtensionM4 Feed Ramp Extension
Gas Blockpinned lo-pro gas block
MaterialCrMoV steel
Nfaatf NoticeAll NFA/ATF Rules Apply
ProfileBA Hanson profile
TestingHP and MPI tested
ThreadThreaded

Pros

  • 5.56 NATO chambered 11.5-inch barrel for compatible AR-15 builds
  • Cold hammer forged construction from CrMoV steel
  • Chrome-lined bore with manganese phosphate finish
  • Includes M4 feed ramp extension and pinned lo-pro gas block
  • HP and MPI tested for added verification
  • Hanson Series barrel with proprietary BA Hanson profile

Considerations & Trade-offs

  • The 11.5 inch length is compact, which can be a trade-off if your setup calls for more barrel length.
  • This Hanson Series barrel includes a pinned lo-pro gas block, so it is less flexible for builds that rely on a different gas block setup.
  • Hanson barrels are not designed to work with aftermarket piston kits, which limits compatibility for those configurations.
  • NFA/ATF rules apply, so use and possession depend on the receiver and firearm configuration.

Suggested Comparisons

  • AR-15 barrel assemblies
  • 5.56 NATO barrels
  • Short-barrel rifle components
  • Chrome-lined barrels

Suggested Accessories

  • AR-15 upper receiver assembly
  • Gas tube
  • Muzzle device
  • Barrel nut

Frequently Asked Questions

What caliber and chambering is this barrel made for?

It is chambered in 5.56 NATO and described as a 5.56x45 carbine barrel.

What is the barrel length?

The listed barrel length is 11.5 inches.

Does this Hanson Series barrel include a gas block?

Yes. The description says it includes a pinned lo-pro gas block.

Is this barrel compatible with aftermarket piston kits?

No. The description states that Hanson barrels are not designed to work with aftermarket piston kits.

What testing and construction details are provided?

The source says it is a Cold Hammer Forged barrel machined from CrMoV steel, with a manganese phosphate finish, chrome lined bore, M4 Feed Ramp Extension, and HP and MPI testing.