Traditions Evolution .50 Cal. Inline Muzzleloader 24" Barrel With a 1:28 Twist. Part is also called hammer or bolt. Part is from a Traditionals Model Evolution .50 caliber inline muzzleloading rifle. Guaranteed to be genuine and original. Barrel is in good to very good condition, as shown. Photos are of the actual item you will receive. Please, examine the photos and if you have any questions about the listing or need additional photos ,contact me. Seller assumes no liabilities. Know your local laws and use a licensed gunsmith.