Powder River Precision Survivor Series Ejector w/Spare Extractor for Stainless Steel. It is heat treated to a minimum of 40 RCH and comes with a spare extractor attached just in case. Fits Ruger 10/22 and cloned models. Ruger and 10/22 are registered trademarks of Sturm Ruger & Co. Inc. Powder River Precision and its products are not affiliated or associated with Ruger. Specifications for Powder River Precision Survivor Series Ejectors: Manufacturer: Powder River Precision Color: Stainless Steel Fabric/Material: Stainless Steel Gun Make: Ruger Gun Model: Ruger 10/22 Gun Type: Rifle Features of Powder River Precision Survivor Series Ejectors Ruger 10/22 and clone models Package Contents: Powder River Precision Survivor Series Ejectors What firearm models does the manufacturer say Powder River Precision Survivor Series Ejectors is compatible with? The manufacturer says that Powder River Precision Survivor Series Ejectors is compatible with Ruger 10/22Powder River Precision PRP-X-1022-SSE: Survivor Series Ejector w/Spare Extractor for 10/22 Stainless Steel