The Chiappa Firearms X-Caliber 20GA Multicaliber Adapter Set transforms your 20-gauge break-open shotgun into a versatile firearm capable of firing up to twelve different calibers. Crafted from high-quality steel each adapter serves as a precise pistol barrel that seamlessly fits into the shotgun chamber allowing you to shoot popular centerfire pistol cartridges like 9mm Luger .38 Special .357 Magnum .45 ACP and .410 Gauge/.45 Colt without any tools or modifications. Its sleek black finish ensures durability while the easy-to-use setup maximizes your shooting options in a single compact package. Perfect for those seeking flexibility and functionality in a shotgun.