Ballistic Advantages 5.56 chambered 16 inch M4 Profile Carbine Length Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension.

Features :

• 4150 Chrome moly vanadium
• M4 profile
• QPQ finish
• Mid-length gas system
• 1:7 twist