The best way to improve the performance of traditional, open iron sights is to add an adjustable aperture rear sight. Some of the very best available today are manufactured in St. Ignatius, Montana by Andy Larsson’s Skinner Sights company.
All Skinner aperture sights are manufactured from solid steel, stainless steel or brass bar stock. Machined to close tolerances, they are designed to fit Winchester, Marlin, Henry, Browning and Rossi lever-action rifles, along with single-shots from Thompson-Center, Ruger and Browning and bolt-actions like the CZ 500/550 series rifles, the Ruger American and even the ubiquitous 10/22 autoloader and many more.
Extremely streamlined Skinner Sights are designed to properly flow and complement the lines of each individual firearm, rather than appear to be an obtrusive addendum. Well made, accurate and rugged, Skinner sights are priced within reach of most enthusiasts.