Specifications:
- Length: 16"
- Parkerized Finish
- 5.56 NATO
- 1:7 Twist
- .750" gas block diameter
- Mid Length gas system with a 0.07 gas hole diameter
- 1/2"x28 Thread Pitch
- 4150 Heat Treated Chrome Moly Vanadium Steel
- Made in the U.S.A.
- Fits: JR-15S2/E2
All barrels should be installed, headspaced and timed by a competent gunsmith.