POF ReVolt Upper receiver assembly, 308 18.5″ Deep Fluted Barrel, Capture Pin Included-NP3

BARREL
Medium contour 18.5” barrel
5R button-pulled polygonal rifling (superior accuracy and velocity)
4150 Mil-B-11595, (machine gun rated steel)
70 Rockwell case hardened (nitride heat treated)
E2 chamber dual extraction technology
Capture Pin included
OPERATION
5-Position adjustable short stroke piston system
Nitride Heat Treated gas block
HANDGUARD
14.5″ M-LOK compatible Edge rail
(4) integrated QD (quick disconnect) sling mounts
Integrated top and bottom 5 slot picatinny rail section for secure front sight and bi-pod mounting
BOLT CARRIER
Piston contour High-Phosphate Nickel coated bolt carrier group, designed for easy cleaning, superior lifespan and corrosion resistance
POF-USA patented Roller Cam Pin upgrade, reduces friction and pre-mature wear within the upper receiver
ADDED VALUE
Oversized aluminum heat sink barrel nut designed to radiate heat away from the chamber/throat area
Triple port muzzle brake FINISH: NP3