10.5" H-Bar Carbine Barrel 300 Blackout 1:7 Nirtide | 300AAC

10.5" Stainless HBar AR Barrel .300 Blackout | Carbine 1:7

16" 4150 Nitride SOCOM Barrel, .300 Blackout, 1:8 Twist

16" CMMG 300 Blackout Barrel | 1:7, Nitride 5/8x24

16" | Cmmg Barrel | 300 BLACKOUT 1:7 | 416SS

Ballistic Bbl 300black 8" Rigid 1-7

Ballistic Bbl 300black 9" Rigid 1-7

Cmmg Bbl 300black 12.5" Mr 4140cm Sbn

Cmmg Bbl 300black 8" 4140cm Sbn

CMMG, 16.1" Nitride Barrel, 300 AAC Blackout, 16.1" Barrel, 1:7 Twist, Carbine

Dd Bbl Assy 300black 1-8 Chf 10.3"

Dd Bbl Assy 300black 1-8 Chf 16" Car

Dmndblack Bbl 300aac 10.5" Pstl Med Mel

Noveske Barrel 300black 10.5" Ss