16"

AR-15 300 blk 4150 CMV 16" hbar barrel 1-7 twist. MADE FROM 4150 CMV AND HARDENED TO 26-32 RC AND STRESS RELIEVED, PLATED BLACK. 1-7 RH TWIST CHAMBERED IN 300 AAC BLACKOUT .750"DIAMETER UNDER GAS BLOCK CARBINE LENGTH GAS SYSTEM  5/8-24 THREAD FOR ATTACHING MUZZLE DEVIC..

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 fee..