Ar15 Bbl, 18", Bb, M16, 5.56, Rifle

FN AR­15 18" Barrels With M16A2 Profile, Rifle Gas Length, 5.56x45mm NATO Caliber

Specifications:

- Caliber: 5.56x45mm NATO
- Length: 18"
- Profile: M16A2
- Gas Length: Rifle
- Twist Rate: 1:7
- Chrome Lined
- Button Rifled
- Alloy Steel