The Night Fision SAW201003WGW is a product that creates a blend of precision and visibility. Produced through injection molding processes and constructed using military-grade polymer, this product offers durability, flexibility, and unmatched daytime visibility, courtesy of its robust polymer tritium outlines. Apart from the tritium vials that are shipped in from Switzerland, all Night Fision products are wholly manufactured in the USA.This particular model, the Perfect Dot night sight set, features a square front with green tritium and a white outline, and a green with a white outline rear. An important detail to note is its compatibility with S&W M&P/M&P M2.0/SD9 and 40 VE, with the exception of the M&P Shield and Core models.