Product Description The Juggernaut Tactical Hellfighter California Compliant AR Mod Kit is the ultimate bolt-on magazine lock solution for AR-10 and .308/LR-308 platforms. Developed after a year of engineering and countless refinements, this patent-pending kit delivers ultra-fast, California-compliant magazine changes without requiring any permanent modification to your upper or lower receiver. The heart of the system is a modified quick-release takedown pin that acts as a button to separate the upper from the lower just enough to disengage semi-automatic operation and automatically disable the magazine lock. Once the upper is separated, the magazine release becomes fully operable. A simple tap re-engages the spring-loaded takedown pin, returning you to action immediately. Compatible with any Mil-spec AR-15 or DPMS Platform AR-10, the AR-10 kit also supports both back and bottom-fed detent configurations. Finished in black and 100% made in the U.S.A., this kit eliminates the need for featureless AR components and bullet buttons entirely. Product Highlights Ultra-Fast Magazine Changes: Patent-pending design enables significantly faster reloads than traditional California-compliant solutions, with no bullet button required. True Bolt-On Installation: Installs in 30 minutes or less with zero permanent modification to your upper or lower receiver. California Compliant: Meets California magazine lock requirements, eliminating the need for featureless AR components while keeping your rifle functional. Wide Platform Compatibility: Fits any Mil-spec AR-15 or DPMS Platform AR-10; AR-10 version supports both back and bottom-fed detent configurations. 100% Made in the U.S.A.: Manufactured entirely in America, finished in black, and built to Mil-spec tolerances. Specs Brand: Juggernaut Tactical Inc. Series/Collection: Hellfighter MPN: JUGJTHFPKCA10 UPC: 702038262114 Platform: AR-10 / .308 Win / LR-308 Color/Finish: Black Material: Steel Compliance: California Compliant Detent Compatibility: Back or Bottom-Fed (AR-10) Country of Manufacture: United States of America Patent Status: Patent Pending Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.