KAK Industry Basic Build Lower Parts Kit - The KAK Industry Basic Build Lower Parts Kit is a black AR-15-compatible lower parts kit designed to provide the essential components needed to complete an AR-15 lower receiver. Classified as a lower parts kit for both type and part type, it is built for standard AR-15 platforms and serves as a reliable, no-frills option for basic builds or replacements. The kit focuses on functionality and compatibility, making it a practical choice for builders looking for core lower receiver components without extra enhancements.