Volquartsen Firearms Target Hammer for Ruger 10/22 and 10/22 Magnum Silver. The target hammer is designed to give the factory Ruger 10/22 a superb _trigger job_ by simply replacing the factory hammer. No stoning or fitting is required. Reduces trigger pull down to approximately 2.5 - 2.75lbs. Made of stainless steel hardened to Rc 58_60. Includes our 10/22 hammer spring hammer bushings hammer shims and trigger return spring. Not compatible with the Ruger BX-Trigger. Specifications for Volquartsen Firearms Target Hammer for Ruger 10/22 and 10/22 Magnum: Manufacturer: Volquartsen Firearms Color: Silver Fabric/Material: Stainless Steel Gun Make: Ruger Gun Model: Ruger 10/22 Condition: New Country of Origin: USA Package Contents: Volquartsen Firearms Target Hammer for Ruger 10/22 and 10/22 Magnum 10/22 Hammer Spring Hammer Bushings Hammer Shims Trigger Return Spring What firearm models does the manufacturer say Volquartsen Firearms Target Hammer for Ruger 10/22 and 10/22 Magnum is compatible with? The manufacturer says that Volquartsen Firearms Target Hammer for Ruger 10/22 and 10/22 Magnum is compatible with Ruger 10/22Volquartsen Firearms VC10TH: Target Hammer for Ruger 10/22 and 10/22 Magnum Silver