The USAC CAM LOCK BUILDERS SET BLACK by U.S. Arms Company is a versatile and innovative solution for firearm enthusiasts seeking a reliable and adaptable multi-caliber cam lock system. This black cam lock set is designed to provide seamless integration and enhanced performance for a variety of firearm applications, making it an essential component for builders and hobbyists alike. The U.S. Arms Company cam lock system is engineered with precision, ensuring a secure and stable connection that supports multiple calibers, offering flexibility and convenience for users who require a multi-caliber firearm lock. As part of the Receivers, Rifle Receivers & Lower Receivers category, this firearm cam lock kit is crafted to meet the highest standards of quality and durability, making it a trusted choice for those who demand excellence in their firearm components. The USAC cam lock builders set is not only a testament to U.S. Arms Company's commitment to innovation but also a practical solution for those looking to enhance their firearm's functionality with a multi-caliber lock. With a status of "A" and a firearm code of "Y," this product requires an FFL, ensuring compliance with all necessary regulations. The UPC for this product is 810047650164, and the MPN is BDK-101-BK-01, making it easy to identify and purchase. Whether you're a seasoned builder or a novice enthusiast, the USAC CAM LOCK BUILDERS SET BLACK offers the reliability and adaptability you need to take your firearm projects to the next level.