5.56-chambered with a government profile, this 11.5” barrel from the Ballistic Advantage Modern Series is machined from 4150 chrome moly vanadium steel and features a QPQ corrosion-resistant finish with QPQ-coated M4 feedramp extensions. The barrel comes with an F-marked front sight base (FSB) along with a delta ring assembly, end cap and barrel nut.
The quench-polish-quench finish of Ballistic Advantage barrels gives each of them added characteristics not found in other barrels. This specialized nitrocarburizing case hardening improves the barrel’s corrosion resistance and converts the surface without risk of dimensional buildup. The QPQ process technique is used when a barrel needs: improved wear and corrosion resistance, natural lubricity or improved fatigue strength. Shop for this FSB barrel for your AR15 build or upgrade and see the QPQ difference for yourself!
*All NFA/ATF rules apply. Depending on your state and local laws, you could use this barrel with a lower receiver that is a registered SBR or pistol. Possession of this barrel along with a Non-NFA lower receiver may be prohibited. We are not lawyers and the above information is not legal advice. Make sure you understand the most up-to-date federal, state and local laws before proceeding with this product.