Night Fision utilizes an injection molded process and military-grade polymer with durable polymer tritium outlines to give you flexibility and unrivaled daytime visibility. With the exception of the tritium vials, imported from Switzerland, Night Fision products are crafted end-to-end right here in the USA.
This night sight set is a square front green tritium with a yellow outline, u-notch rear green tritium, and fits Glock models 20/21/29/30/36/40/41 (including S and SF variants).

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