Product Description
Our 5.56 barrels are manufactured from 4150 11595E Steel. For AR Carbines, they use 1/7 twist to ensure stabilization across all grains of 9mm loadings. Further, they feature Mag Phosphate coating for superior corrosion resistance and longevity. Bore has been chrome lined. Muzzles have ½”x28 threads, FSB is pinned after coating to prevent corrosion. The barrel extension is a M4 ramped. The pins are loose so you can easily put your handguard parts on.
- Caliber- 5.56 NATO
- Twist Rate- 1/7
- Length- 7.5"
- Finish- Phosphate
- Bore- Chrome Lined
- Profile- .750 Gov
- Gas Block OD- .750+-.001
- Steel Type- 41V50
- Thread Pitch- 1/2x28
