This Timber Creek Outdoors pencil barrel is a 16 in 5.56 NATO barrel for AR-15 rifle builds. It has a lightweight pencil profile, a mid-length gas system and M4 feed ramps, with a 1:7 twist for heavier bullets. The black nitride finish resists wear and corrosion.
- Fits: AR-15
- Caliber: 5.56 NATO
- Length: 16 in
- Profile: pencil
- Gas system: mid-length
- Twist: 1:7
- Feed ramps: M4
- Finish: black nitride
