FN America's AR-15 barrels are hammer forged using the same proprietary high-grade Chrome Moly Venadium steel used in FN's machinegun that are barrels produced to handle the punishment of sustained fully-automatic fire. 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 ||20"|
|Manufacturing Process ||Hammer Forged|
|Gas System||Rifle Length|
|Outside Finish||Matte Black Manganese Phosphate |
|Material ||Chrome Moly Vanadium |
|Muzzle Thread ||1/2x28 TPI (Threads Per Inch) |