Ballistic Advantage 556 11.5" Government Barrel (.750) - Modern Series

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This Ballistic Advantage Modern Series barrel combines the durability and strength of 4150 Chrome Moly Vanadium steel with the exceptionally corrosion resistant salt bath nitride treatment. This provides not only an impressive barrel life, but ensures excellent accuracy and an affordable price. Every Ballistic Advantage barrel is guaranteed to give sub Minute of Angle accuracy with match grade ammunition. 

Caliber 5.56 NATO
Barrel Length 11.5"
Barrel Profile Government
Barrel Material 4150 Chrome Moly Vanadium Steel
Barrel Finish QPQ Corrosion Resistant
Gas System Length Carbine-Length
Gas Block Journal .750"
Twist Rate 1:7 inches
Muzzle 1/2x28 Threaded
Barrel Extension M4 Feedramps
Weight 20.5 oz
Manufacturer Ballistic Advantage

Modern Series

Modern Series Barrels

Made from the same 41V50 Chrome Moly Vanadium steel used in MIL-SPEC barrels, these barrels are designed and manufactured to a level far surpassing MIL-SPEC. After being precision cut, each barrel is fully treated with a corrosion resistant QPQ salt bath nitride finish. This finish does not alter the dimensions of the barrel which allows the precision tolerances to carry through to the finished product.

By treating the barrel and the M4 barrel extension separately prior to installation, proper torque value is maintained throughout the life of the barrel. Muzzles feature a flat crown with chamfer and threading. In the end, a Modern Series barrel is an economically priced barrel attached to an MOA guarantee.

This video describes the Modern Series:

Accuracy Guarantee

Your Ballistic Advantage 556 Modern Series 11.5 Carbine Length Barrel is Guaranteed to Perform!

Ballistic Advantage is committed to providing products that meet, or exceed, the expectations of the most discerning customers. They stand behind that commitment. From the moment you unwrap one of their barrels, as you configure it with your receivers and handguards, and as you fire it on the range or in the field, they want you to experience the unique elegance and uncompromising quality crafted into every barrel.

BA also stands behind their commitment to performance. All Ballistic Advantage barrels are guaranteed to give sub Minute of Angle (MOA) accuracy with match grade ammunition.1

If you are not completely satisfied with the form, fit, and finish of any of their barrels, please first consult the Troubleshooting Guide on their website. If you find that your BA barrel is not performing at the high standard of sub MOA accuracy, visit Contact  to discuss your concerns. Usually, their armorers are able to resolve any issues over the phone. If the issues are not resolved they ask that the barrel be sent to them for inspection.2 They will either correct the problem, replace the barrel, or reimburse the purchase price of the barrel.

1 BA defines sub MOA as a group size of 1 inch or under at 100 yards with a 3 shot magazine fed group, or 5 shot single loaded group.

2 The customer is responsible for the initial return shipping costs of the barrel. If any defects are found, BA will reimburse the shipping costs and either replace or refund the original purchase price of the barrel.

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