FN

FN AR-15 Barrel Specifications and Features:

• FN Item Number: 20-100039
• AR-15 Barrel
• Caliber: 5.56 NATO
• Length: 16", Government Profile
• Chrome Moly Vanadium Steel
• Button Rifled
• 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