The ATN Thermal Target 3-Pack is a specialized zeroing kit designed to provide a consistent and highly visible heat signature for calibrating thermal rifle scopes. Unlike standard paper targets, these use a heat-sensitive material paired with an included heat source (typically activated chemically like a hand warmer) to eliminate the frustration of trying to find naturally occurring hot or cold points for a point of aim. Each 16x16-inch target features a printed grid to help shooters make precise windage and elevation adjustments quickly. This kit is an essential tool for ensuring your thermal optic is perfectly zeroed before a hunt or tactical session, offering a reliable, high-contrast thermal signature even in diverse weather conditions. ATN Pack of 3 Thermal Targets w/ Included Heat Source ACMKIRTGPK