Our 4150 chrome vanadium steel barrels feature 5R rifling and nitride heat treating for increased surface hardness and corrosion resistance. You can expect extractor life to drastically increase due to Patented E² extraction technology.
POF-USA Premium AR Barrels are constructed from mil-spec 4150 chrome vanadium steel and feature 5R rifling. All barrels are nitride heat treated to increases surface hardness and corrosion resistance. M4 feed ramp barrel-extensions ensure reliable feeding. You can expect extractor life to drastically increase due to the Patented E² extraction technology.
