Elevate the firepower of your preferred shotgun with these robust magazine extensions. Constructed from durable blued solid steel, these extensions are equipped with a spring, a base clamp featuring a swivel stud (included, designed for compatibility with quick detachable swivels, not included), and a high-visibility follower (please note that specific extensions may require a factory follower, which is not provided). The threaded tube seamlessly replaces your magazine cap, allowing you to expand your magazine's capacity. Installing the extension is a straightforward process, thanks to the included user-friendly instructions. This magazine extension tube is a versatile addition, offering significant advantages for home defense, competition shooting, and law enforcement applications.