International Barrels Inc (IBI) 300 Blackout Barrel 19″
The IBI Barrel, 19″ Non restricted length 300 Blackout
Carbine Length Gas system.
If you are serious about accuracy, then you already know about the quality workmanship put into every IBI Barrel.
Also available in Pistol Length Gas (BA100-013), 7.62X39 (BA100-011) and .223 Wylde (BA100-010)