FN15 20 Upper (HF Barrel) Complete (with BCG and CH).

FN15 20" Rifle Upper Assembly (36427)
Barrel Profile: M16 style
Rifle-length gas system
A2 front sight post
Two-piece, single heat shield, oval hand guard


FN 15в„ў Upper Receiver Assemblies are meticulously built in FN's Columbia South Carolina manufacturing facility alongside US Military contract M4 rifles. Each upper receiver is supplied with and M16-style Bolt Carrier Assembly with properly staked gas key and Carpenter 158 Magnetic Particle Inspected (MPI) bolt, charging handle and FN's venerable cold hammer-forged barrel.

FN's proprietary Chrome Moly Venadium steel and cold hammer-forging process offer unmatched consistency and durability in every barrel produced. Each barrel and chamber is hard-chrome lined to MIL-STD 171, and barrel extensions have M4-style feed ramps regardless of barrel length. 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.

BARREL

COLD HAMMER FORGED
PROPRIETARY CMV BARREL STEEL
HARD-CHROME LINED TO MIL-STD 171
M4 FEED RAMPS
HIGH PRESSURE TESTED
MAGNETIC PARTICLE INSPECTED (MPI)
MANGANESE PHOSPHATE FINISH
CHAMBERED IN 5.56X45MM
1:7 RH TWIST

BCG/BOLT

M16/AUTO BOLT CARRIER ASSEMBLY
CARPENTER 158 BOLT (MPI)
STAKED GAS KEY