AR-15 300 BLACKOUT 16" PULSE FLUTED BARREL THREADED. These barrels are chambered in .300 Blackout, made from 4140 steel , heat treated to RC 25-32. Melonite QPQ finish. Fluted models feature YHM's diamond fluting to improve rigidity and aid in barrel cooling. These barrels feature M4 style feed ramps for reliable function. Threaded models feature 5/8"x24 threads for YHM muzzle brakes, flash hiders, and suppressor. Twist rate is 1 in 8".
Manufacturer: Yankee Hill Machine