Volquartsen Firearms Hammer Bushing for MKII Black. Volquartsen Firearms manufactures these Pistol Parts using screw machine equipment. Their drive for perfection makes the Volquartsen VC2HB Hammer Bushing for MKII a more exact fit than even the factory bushing. Upgrade your Ruger with the Volquartsen Hammer Bushing VC2HB. Specifications for Volquartsen Firearms Hammer Bushing for MKII: Manufacturer: Volquartsen Firearms Color: Black Finish: Black oxide finish Gun Model: Ruger Mark II Condition: New Country of Origin: USA Features of Volquartsen Firearms Hammer Bushing Ruger MKII VC2HB: Manufactured using screw machine equipment. Black oxide finish and hardened. Hammer pivot pinhole drilled and reamed to eliminate variances. Package Contents: Volquartsen Firearms Hammer Bushing for Ruger MKII VC2HB What firearm models does the manufacturer say Volquartsen Firearms Hammer Bushing for MKII is compatible with? The manufacturer suggests that Volquartsen Firearms Hammer Bushing for MKII is compatible with Ruger Mark IIVolquartsen Firearms VC2HB: Hammer Bushing for MKII Black