rosco bloodline 10.5″ 300 blk ar-15 barrel

The Rosco 10.5” 300 Blackout barrel is designed for SBRs and pistols, especially with suppressors. It’s a direct replacement for MK 18 platforms in 5.56 NATO and ideal for carbines needing a longer rail to accommodate PEQ-15s, D-BAL series, or laser aiming devices. ALL NFA RULES APPLY!