Smooths & Lightens Trigger Pull
Wire EDM machined d from A2 tool steel to precise tolerances to provide a more consistent trigger pull that’s 1½-2 lbs. lighter. Heat-treated to Rc 40 for longer service life than cast factory part. Retains factory safety features. Fits Mk III series; can be altered to fit earlier models.
Big Book Catalog, Issue:70, Page:228
SPECS: A2 tool steel, heat treated, blued. Installation requires drilling of slide with included drill bit. Gunsmith installation required.