FN AR15 premium button rifled barrels are are manufactured using U.S. sourced Chrome Moly Vanadium material per Mil-B-11595E. Each barrel is High Pressure Tested (HPT) and Magnetic Particle Inspected (MPI) to ensure that it is free of microstresses or flaws, resulting in consistency and quality in every barrel shipped from the factory. The bore and chamber are chrome lined to help resist corrosion and provide resistance to heat erosion which greatly improves barrel life and reliable chambering / extraction. The M4 style feed ramps and barrel extension provide consistent feeding and the matte black Manganese Phosphate finish resists external corrosion and oxidation.
Additional Information:
- Manufacturer FN
- Model AR-15/M4
- Width 2.4000
- Length 22.9000
- Height 2.3000
- Weight 2.0350
- Caliber .223/5.56mm
- Barrel Length 16″
- Barrel Type Hammer Forged
- Material Chrome Moly Vanadium
- Finish Manganese Phosphate
- Color Black
- Description Carbine Length Gas System
- M4 feed ramps and barrel extension
- Magnetic Particle Inspected (MPI)
- High Pressure Tested (HPT)
- Chrome Lined Bore
- Thread Pattern 1/2″-28 tpi
- Twist 1:7
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