ArmaLite's barrels are custom-made for extreme accuracy and long life. This complete barrel assembly includes a full front sight housing, barrel nut, slip ring, slip ring spring, slip ring retaining ring, gas tube and handguard cap.
Caliber: .223/5.56 mm NATO
Barrel: 16" Chrome Lined Barrel with M4 Profile and M4 Feed Ramps
Rifling Twist: RH 1:9
Muzzle Device: Flash Suppressor
Front Sight Base: A2 Front Sight
Finish: Manganese Phosphated Steel