XS Sights 24/7 Night Front, Integral U-Notch Rear

Smith & Wesson 103072 M&P 340 357 Mag Or 38 S&W Spl +P 5 Shot 1.88″ Black Barrel, PVD Cylinder Black, Scandium Alloy J-Frame, XS Sights 24/7 Tritium Night Front Sight