Caliber is 7-30 waters with factory muzzle break. I will combine multiple orders. The item "Thompson Contender 12 Hunter 7-30 Waters Barrel in Box" is in sale since Thursday, May 13, 2021. This item is in the category "Sporting Goods\Hunting\Gun Parts\Pistol".The seller is "oldsawmill" and is located in Bonner, Montana. This item can be shipped to United States.