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