The HOWA Ammo Boost magazine kit introduces an interchangeable mechanism compatible with Howa 1500 and Weatherby Vanguard rifles. This kit includes a 10-round magazine capable of accommodating either .223 Remington or .204 Ruger cartridges. Both components feature a black finish and are constructed from durable polymer material. Compatible kits for all short and long action Howa 1500 rifles, including Weatherby Vanguards, S&W 1500, Mossberg 1500, and Interarms 1500 models The product is designed for seamless installation, requiring minimal effort and preparation, allowing users to integrate it effortlessly into existing systems Manufactured in the United States of America