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Questions & Answers
What is the gas tube length on this barrel? carbine or mid-length? Expert Answer

The Ballistic Advantage Modern 5.56 Barrel (MPN:BABL556033M), uses a mid-length gas system and would require a mid-length gas tube. MPN:BABL557103M has a carbine-length gas system and would require a carbine-length gas tube.

by Ethan, Gear Expert, May 24, 2022
Does this barrel come with barrel nut and/or armourers grease? What size crows foot does it require if it does come with barrel nut? Expert Answer

The Ballistic Advantage Modern 5.56 Barrel will not include a barrel nut or grease. It will use any standard AR15 barrel nut for installation.

by Ethan, Gear Expert, April 21, 2022
Customer Reviews
Helpful Negative Review
Barrel length is 13in not 13.7in by GeisseleAutomatics, Verified Owner, August 22, 2024
Barely description says 13.7” but it is only 13”, beware before purchasing.
1/1 found this helpful
Most Recent Reviews
Barrel Length by GeisseleAutomatics, Verified Owner, August 22, 2024
It’s only 13” and not 13.7”, beware before purchasing barrel.
0/2 found this helpful
Read All 2 Reviews

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Color:
Black
Finish:
QPQ Corrosion Resistant
Barrel Length:
13.7 in
Barrel Profile:
Government
Gas System Length:
Mid Length
Gas Block Journal Size-Diameter:
.750 in
Barrel Twist Rate:
1-7
Barrel Material:
4150 Chrome Moly Vanadium
Gun Make:
AR Platform
Gun Model:
AR-15
Weight:
25 oz
Condition:
New
Gas Block Journal Size-Length:
.750 in
Firearms Threads Per Inch:
1/2x28

Code: 29M-ATB-BAPM-BABL556033M

MPN: BABL556033M

UPC: 819747020253

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List: $170.00Save $8.50
$161.50

made-in-usa-flag Made in USA

Help support American manufacturing! Marked models of this product have gone through rigorous review and been certified by the manufacturer as Made in the USA.

Product Info for Ballistic Advantage Modern 5.56 Barrel

Unleash the full potential of your firearm by upgrading to a Ballistic Advantage Modern 5.56 Barrel. For maximum ruggedness Ballistic Advantage machined these Rifle Barrels from 4150 Chrome Moly Vanadium steel complete with a coated finish so that you can use these in any weather conditions. In fact, the Chrome Vanadium coating on this Ballistic Advantage 5.56 Barrel greatly boosts its corrosion resistance, making it a prime choice for nearly any application. Your firearm function will also improve, since the Crane Spec .070in gas port helps with the increased gas flow. Equipping a Ballistic Advantage Mid-Length Modern 5.56 Barrel will result in an entirely new shooting experience.image

Specifications for Ballistic Advantage Modern 5.56 Barrel:

Manufacturer: Ballistic Advantage
Color: Black
Finish: QPQ Corrosion Resistant
Fabric/Material: 4150 Chrome Moly Vanadium
Barrel Length: 13.7 in
Barrel Profile: Government
Gas System Length: Mid Length
Gas Block Journal Size-Diameter: .750 in
Barrel Twist Rate: 1-7
Barrel Material: 4150 Chrome Moly Vanadium
Gun Make: AR Platform
Gun Model: AR-15
Weight: 25 oz
Condition: New
Gas Block Journal Size-Length: .750 in
Firearms Threads Per Inch: 1/2x28
Country of Origin: USA

Package Contents:

  • Ballistic Advantage Modern 5.56 Barrel

Ballistic Advantage Modern 5.56 Barrel Orderable Models

List of Orderable Models

  • Ballistic Advantage Modern Barrel, AR-15, 5.56, 13.7in, Government Contour, 1/7 Twist, 1/2x28 Thread, QPQ Corrosion Resistant, Black, BABL556033M , MPN: BABL556033M , UPC: 819747020253 , Code: 29M-ATB-BAPM-BABL556033M

Ballistic Advantage Modern 5.56 Barrel Unavailable & Discontinued Models

List of Unorderable Models

  • USED, Ballistic Advantage Modern Barrel, AR-15, 5.56, 13.7in, Government Contour, 1/7 Twist, 1/2x28 Thread, QPQ Corrosion Resistant, Black, BABL556033M , MPN: BABL556033M-EDEMO , Code: 29M-ATB-BAPM-BABL556033M-EDEMO-OB-B
  • Ballistic Advantage Modern Barrel, AR-15, 5.56, 10.3in, Government Contour, 1/7 Twist, 1/2x28 Thread, Phosphate, Black, BABL557103M , MPN: BABL557103M , UPC: 819747020222 , Code: 29M-ATB-BAPM-BABL557103M
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Last updated 2026-09-05 UTC.