Rosco barrels are the perfect option for an evenly capable SBR/ RECCE build. It is designed to give the shooter maneuverability at close quarters yet allow them to get first round impact hits as far as 300 yards. The gas system has been designed to give the platform a non-turbulent operation while not sacrificing proper dwell times. This barrel is perfectly suited for your next expeditionary/ entry rifle build. Rosco Manufacturing's "Purebred" series is a testament to precision and quality manufacturing. Rosco took a step back to see how they could create a barrel line that would be a culmination of all the lessons learned through years of making barrels for several Mfg: Rosco Manufacturing