FN's Cold Hammer Forged Barrels Have a Legendary Reputation for Quality and Accuracy

FNH USA has more than 100 years of exceptional barrel manufacturing. Trusted by the US government to produce barrels for our modern warriors and that same level of quality and expertise is now available to you. These FN barrels are hammer forged utilizing the same proprietary high grade Chrome Moly Vanadium steel which is used in FN machine gun barrels to handle the punishment of sustained full auto fire. Each barrel is High Pressure Tested and Magnetic Particle Inspected to ensure that it is free of micro-stresses or flaws resulting in consistent, quality barrels. The bore and chamber are chrome lined which improves barrel life and reliable chambering and extraction. Barrels includes M4 style feed ramps to provide consistent feeding and are finished in matte black manganese phosphate to provide long-term corrosion resistance.

FN AR-15 Hammer Forged Barrel Specifications and Features:

• FN Item Number: 36421
• AR-15 Barrel
• Caliber: 5.56 NATO
• Length: 16", Government Profile
• Chrome Moly Vanadium Steel
• Cold Hammer Forged
• Carbine Length Gas System
• .750 Diameter Gas Seat
• Muzzle Threaded 1/2x28
• M4 Feed Ramps
• Chrome Lined Bore and Chamber
• HPT and MPI Tested
• Manganese Phosphate Finish
• Color: Matte Black