24" .223 WSSM Upper Conversion Unit

Upper conversion unit for your complete AR-15 lower receiver chambered for the .223 Winchester Super Short Magnum. Ballistics for this caliber ballistically mimic that of the 22-250.

This is the complete upper receiver assembly with 24" barrel - fully head-spaces test fired and ready to drop on any complete 5.56/.223 AR15 lower.  Includes picatinny  flat top upper receiver, charging handle, bolt carrier assembly, 24" button rifled barrel made from stainless steel, free floating aluminum handguard, picatinny gas block and a crowned muzzle.

Includes one 6-round magazine.  The ejection port cover is not included because the port is enlarged to allow proper ejection of the magnum sized brass.