The Ballistics Advantage 5.56 Government chambered 10.5" Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension. *All NFA/ATF Rules Apply.
Specifications:

Caliber or Gauge	5.56 NATO
Length	10.5"
Model	AR Barrels
Twist	1:7"
Sights	None
Bore Type	Rifled
Finish	QPQ Corrosion Resistant
Type	Rifle
Chokes Included
Choke Configuration
Barrel Type	Government Profile
Ammo Type	Tactical
Barrel Features	1/2"-28 tpi