The Sig Sauer Xray3 Day and Night Super Tall Suppressor Sight Set is a pair of day and night sight set for P series. It features a .374-inch tall front and a .417-inch tall rear sight. The sights are an equivalent of Sig Sauer's number 6 front and number 8 rear. Installation of its parts kits require disassembly of your firearm beyond a ‘field-stripped’ condition. Improper installation may result in malfunction, serious injury, or death. Sig Sauer requires that only certified Sig Sauer armorers install these parts kits.