18" AR15 .450 Bushmaster Barrel AR15 Barrel AR15-Barrel .450-Bushmaster (2)

This AR-15 Barrel is a 18" heavy profile barrel made of 416R stainless steel with a stainless finish, a mid-length gas system with a 1:24 twist rate. The barrel is chambered in .450 Bushmaster and machined with single feed ramps in the barrel extension.