POF P308 Edge Upper receiver assembly SPR, 308 WIN, 18.5″ barrel, 14.5″ Modular rail-NP3

BARREL
5R button-pulled polygonal rifling (superior accuracy and velocity)
4150 Mil-B-11595, (machine gun rated steel)
Medium contour
70 Rockwell case hardened (nitride heat treated)
5/8×24 threads
E2 chamber dual extraction technology
OPERATION
5-Position adjustable short stroke piston system
Nitride Heat Treated gas block
HANDGUARD
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