Patented Hammer Strut Support (TM) for Ruger MK pistols. Fits all Mk III and Mk II pistols, except it will not fit any 22/45 models, or the new MK IV.
It fits most but not all, Ruger Standard and MK I pistols. Check compatibility page for all Ruger Standard and MK I pistols. Fitting problems are known for those manufactured 1965 to 1975.
Hammer Strut Support for Ruger MK
Purchase price refunded for any reason.