300BLKOUT 5.9″ Nitride Premium+ (Siphon AGP) w/Nickel Boron (Pistol Length Barrel)
…Sonic Ammunition Recommended (PATENTED US PAT NO. 10,274,273)) “SOT Siphon AGP” Angled Gas Port Nitride Premium 5.9″ Pistol Length Barrel Reduced Recoil over any other barrel in it’s class Improved Gas Flow (300BLKOUT) 7.62×35mm +11 Degree Target Crown MILSPEC 4150 CrMoVa .936 Gas Seat* Nickel Boron M4 Barrel Extension Premium Nitride Treatment Inside and Out PISTOL Length Gas System 1:7 Twist Rate Muzzle 5/8×24 Thread Pitch Barrel Weight (1LB 1.5…