T/C Arms 12282 Impact SB 50 Black Powder 26" Silver Weather Shield Realtree Edge. The Impact SB is offered in a Realtree Edge and Silver Weather Shield corrosion-resistant finish. Also includes a 1" removable buttstock spacer, allowing the user to adjust the length of pull to best suit clothing choice and weather conditions in the field. A new, hand-removable triple lead thread breech plug and Power Rod aluminum ramrod for easy loading.