FN America's AR-15 premium button rifled barrels are are manufactured using U.S. sourced Chrome Moly Venadium material per Mil-B-11595E. All of FN's barrels are Magnetic Particle tested to ensure that it is free of micro-stresses or flaws, resulting in consistent quality in every barrel. Both the bore and chamber are chrome lined to help resist corrosion, provide reliable chambering/extraction and extend the life of the barrel. The M4 style feed ramps and barrel extension provide consistent feeding. Finished with a Matte Black Manganese Phosphate finish to resist external corrosion and oxidation.
| Caliber |
5.56 NATO |
| Barrel Length |
16" |
| Manufacturing Process |
Button Broached |
| Twist Rate |
1:7 |
| Gas System |
Mid Length |
| Inside Finish |
Chrome |
| Outside Finish |
Matte Black Manganese Phosphate |
| Material |
Chrome Moly Vanadium |
| Muzzle Thread |
1/2x28 TPI (Threads Per Inch) |
