No, shotgun choke tubes are not universal. Each type of shotgun has its specific choke tube that is designed to fit that particular gun. Choke tubes come in different sizes and designs, so it is important to make sure you get the right one for your shotgun. Shotguns can have either internal or external chokes, and each type requires a different kind of choke tube.
Some companies make generic choke tubes that will fit multiple types of shotguns, but it is always best to buy a specific choke tube for your gun. This will ensure that the fit is tight and secure and that the performance of your shotgun is not compromised in any way. It is also important to note that not all shotguns are compatible with all types of choke tubes. Make sure you check the compatibility of your shotgun and choke tube before making a purchase.