Rosco Manufacturing Bl-105-HB-300Black-7-P Bloodline 300 Blackout 10.50" Nitride 4150 CMV Barrel This Rosco 10.5" 300 Blackout Barrel Was Designed For SBR And Pistol Use In conjunction With suppressors. The 10.5" 300 Blackout Rosco Barrel Was Made To Be a Direct Replacement For Any MK 18 platforms That Are Currently In 5.56 Nato. The 10.5" Barrel Is Also Perfect For Carbines Which Require a slightly Longer Rail In Order To Run PEQ-15S, D-BAL (Series), Or Any Laser aiming devices Comfortably. Length: 10.50" Model: Bloodline Twist: 1:7" Finish: Nitride
