K9 Sage Dynamics

Rosco Manufacturing K9 Sage Dynamics556NATO12.5″ Barrel1:7 TwistNitride FinishBlackPatrol Length Gas SystemIncludes Proprietary Patrol Length Gas Tube TFeatures:5.56 NATONitride Finish12.5, 1:7 TwistPatrol Length Gas SystemThreaded 1/2×28