The culmination of eight years of research and development to meet FBI protocols for duty ammunition. Its FlexLock® “intelligent bullets” react differently depending on the barrier they encounter. Flex Tip® technology eliminates bullet clogging while enhancing penetration. Jacket-to-core InterLock® inhibits separation for optimal weight retention when penetrating everything from auto glass to plywood and sheet metal. Nickel-plated cases resist corrosion and enhance visibility for chamber checks in low light. The result is superior tactical terminal performance. Made in USA.