The Badger Ordnance M16-style extractor kit contains replaces the factory extractor in modified factory and aftermarket bolts designed to accept M16 extractors. The extractor functions the same as the extractor in an AR-15 bolt. The M16-style extractor will not pull out of the bolt when a sticky case is encountered. The Kit includes the extractor, roll pin, and spring. Gunsmith installation is required, will not work with un-modified bolt assemblies. Proprietary design for use with Badger Ordnance Bolts. Not compatible with PTG bolts that use an M16-style extractor.