Ar15 Bbl, 16", Bb, M4, 5.56, Carbine

FN AR-15 16" Barrel, M4 Profile Carbine Gas Length, 5.56x45mm NATO

Specifications:

- Caliber: 5.56x45mm NATO
- Length: 16"
- Profile: M4
- Gas Length: Carbine
- Twist Rate: 1:7
- Chrome Lined
- Button Rifled
- Alloy Steel