K8MAGUR243: 24" .243 WSSM Upper Conversion Receiver Assembly

This is a complete upper receiver conversion unit for your assembled standard 5.56/223 AR-15 lower receiver chambered in .243 Winchester Super Short Magnum.

Upper receiver assembly includes a 416 stainless steel 24" bull barrel.  Standard with flat top upper receiver, charging handle, bolt carrier assembly, broach-cut SUM barrel, free floating aluminum handguard, picatinny gas block and a crowned muzzle.

Fully assembled headspaced and test-fired.  Includes one 6-round magazine.  The ejection port cover is not standard on WSSM models.