Carlson's Mag Extension 12GA for Remington Versa Max lets you boost your shotgun's cartridge capacity with precision and reliability. Made of durable blued solid steel this premium extension features a threaded tube that replaces your magazine cap offering extra firepower for critical applications like home defense competitive shooting or law enforcement needs. It includes a spring base clamp with swivel stud for quick-detachable swivel compatibility and a high-visibility follower for added convenience (some models may require the factory follower). Designed specifically to fit the Remington 870 this steel magazine extension is the ideal choice to increase your shotgun's performance and capacity.