Exact Edge Extractor for the Smith and Wesson M&P 15-22. The replacement extractor was manufactured through a EDM process to provide exact tolerances. The geometry has been changed to provide positive ejection every time. One geometry change was moving the hook .015" closer to the rim and changing the angle so that it grabs the spent casing with much more precision and control. The extractor is A2 Tool Steel and hardened to Rc 58-60 so this extractor will not wear out or round over after years of use.