FN is a legendary firearms manufacturer with over a hundred years of experience creating the most battle proven firearms in the world. This complete AR-15 upper receiver is no exception to their longstanding tradition.
FN 15 Complete Upper Receiver Assemblies are meticulously built in FN’s Columbia South Carolina manufacturing facility alongside US Military contract M4 rifles. Each complete AR-15 upper receiver is supplied with an M-16 style Bolt Carrier Assembly with properly staked gas key and Carpenter 158 Magnetic Particle Inspected (MPI) BCG, charging handle, and FN’s venerable cold hammer-forged rifle barrel.
FN’s impeccable reputation is clearly seen in this complete AR-15 upper receiver.
FN’s proprietary Chrome Moly Venadium steel and cold hammer-forging process offer unmatched consistency and durability in every barrel produced, for maximum accuracy and durability out of an AR-15. Each barrel and chamber is hard-chrome lined to MIL-STD 171, and barrel extensions have M4-style feed ramps regardless of barrel length for reliable feeding. FN barrels are individually high pressure tested and Magnetic Particle Inspected and each upper is test fired to ensure optimum function and performance before leaving the factory.
– FN 15 16″ complete Carbine AR-15 Upper Assembly
– Barrel Profile: M4 style
– Carbine length gas system
– A2 front sight post
– Two piece, single heat shield, oval hand guard
– Cold Hammer Forged
– Proprietary CrMoV Barrel Steel
– Hard Chrome Lined to Mil Standard 171
– M4 Feed Ramps
– High Pressure Tested
– Magnetic Particle Inspected (MPI)
– Manganese Phosphate Finish
– Chamber: 5.56x45mm
– Rate of Twist: 1:7 RH
– M16/Auto Bolt Carrier Assembly
– Carpenter 158 Bolt (MPI)
– Staked Gas Key
Manufacturer's SKU: 36426