Meprolight Tru-Dot Sight Set S&W Sigma Steel Blue Tritium Green
Meprolight Sight's own Tritium light source (no batteries and no charging), is not affected by weather or gun solvents. Fitting may be required on some firearms. Made of blued steel with tritium inserts. Fits guns originally fitted with fixed, non-adjustable factory sights. Fixed Sigma series sights offer 12 years of illumination.