The SAW201003YGZ by Night Fision is a high-quality product created using an innovative injection molding process. This procedure utilizes military-grade polymer and durable tritium outlines known for their flexibility and excellent daytime visibility. All aspects of the Night Fision line, aside from the tritium vials that are imported from Switzerland, are meticulously crafted from start to finish right on American soil.This specific Perfect Dot night sight set features a square front fitted with green tritium and a yellow outline. It also includes a square black rear. This set is specifically compatible with the S&W M&P/M&P M2.0/SD9 and 40 VE models, excluding the M&P Shield and Core models.