The KAK AR-15 lower parts kit is a great option for those looking to build a custom AR-15 lower receiver. By excluding the grip and trigger guard, this kit allows for personalization with aftermarket components while still providing high-quality, reliable internals. The Mil Spec trigger group ensures consistent performance and the black oxide coated springs enhance durability and smooth operation. With USA made parts, this kit provides the flexibility to create a build that fits your exact preferences, all while maintaining top tier quality. Does not include a grip or trigger guard Equipped with black oxide springs Comes with a red bag