This YHM 14.5″ M4 5.56 NATO Mid-Length barrel was designed around the USASOC specs for an Improved Upper Receiver Group. The longer, mid-length gas system allows for a smoother gas curve which leads to managed dwell times. This combo creates a great balance of speed and performance. ALL NFA RULES APPLY!
- Barrel Length: 14.5"
- Weight: 26.34oz.
- Material: 4150 Chrome Moly Vanadium
- Chamber: 5.56mm
- M4 Feed Ramps: Yes
- Profile: M4
- Twist Rate: 1 in 7"
- Gas Block Journal Size: .750"
- Gas System length: Mid-Length
- Muzzle Crown: 11 Degrees
- Muzzle Thread Pattern: 1/2" x 28
- Finish: Nitride