Ballistic Advantage 13.9" 5.56 NATO Government Barrel

Ballistic Advantage 13.9" 5.56 NATO Government BarrelCompact precision with enhanced durability.The Ballistic Advantage 13.9" 5.56 NATO Government Barrel is purpose-built for durability, balance, and consistent performance in demanding setups. Machined from 4150 Chrome Moly Vanadium steel and finished with a QPQ (Quench Polish Quench) corrosion-resistant treatment, this barrel delivers smooth operation, superior wear resistance, and enhanced longevity.Its government profile provides a strong blend of rigidity and manageable weight, while the mid-length gas system promotes smoother cycling and reduced recoil impulse. The M4 feed ramp extension, also QPQ-treated, ensures reliable feeding under all conditions. With 1:7 twist rifling, it stabilizes a broad range of 5.56 bullet weights-ideal for tactical, defensive, or range-ready builds.This barrel is perfect for pin-and-weld configurations when paired with a suitable muzzle device to meet the legal 16" minimum length.Features 4150 CrMoV Steel - Heat and pressure-resistant construction QPQ Nitride Finish - Corrosion-resistant and low-maintenance Mid-Length Gas System - Reliable cycling and reduced recoil Government Profile - Balanced weight and rigidity 1:7 Twist Rate - Optimized for 55-77gr bullets Threaded 1/2x28 Muzzle - Ready for brakes, comps, or suppressors M4 Feed Ramps - Enhanced feeding reliabilitySpecifications Caliber: 5.56 NATO Length: 13.9" Material: 4150 CrMoV Steel Finish: QPQ / Black Nitride Profile: Government Gas System: Mid-Length Gas Block Journal: 0.750" Twist Rate: 1:7 RH Thread Pitch: 1/2x28 Weight: 26 oz Platform: AR-15 Made in the USACompliance Note:All NFA/ATF rules apply. Must be used with a registered SBR, pistol lower, or a permanently attached muzzle device that brings OAL to 16" or more.