556 Stuck Case Extractor.
To be used when the case remains in stuck in the chamber when the rear of the case has been separated from the main body of the case.
Insert into the rear of the a 223 Case that has its has separated
Allow the bolt to close onto the extractor.
The extractor will the snap onto the rim of the extractor insert.
Pull the bolt rearward, extract and remove the offending case.