Get the Meprolight® Advantage :
Unequaled Low Light Performance
Brightest Night Sights Available Today
Used by Military & Law Enforcement
All Tru-Dot® sights are covered by a 12 years usable illumination warranty to original purchaser. 

The ML - 22771 is an adjustable set for use on the K,L and N frame revolvers that have a pin-on fornt sight and fully adjustable rear sight. This model is not meant for use on the "Mountain Guns". Mountain guns have a much higher front sight.