The Ballistics Advantage 16" 5.56 Government Profile Midlength AR 15 Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension. With a mid length gas system and .750" gas block journal.
- Caliber:
- 5.56 Nato