T/C Thompson Center White Mountain Carbine Barrel Rib. Part is from a Thompson Center Arms White Mountain Carbine cap lock. 50 caliber black powder muzzleloading rifle. Guaranteed to be genuine and original. Barrel Rib is in good condition. Photos are of the actual item you will receive. Know your local laws and use a licensed gunsmith. This item is in the category “Sporting Goods\Hunting\Vintage Hunting\Black Powder”. The seller is “dgp1992″ and is located in this country: US. This item can be shipped to United States.