Thompson/Center® Impact SB RifleThe Thompson Center Impact SB delivers downrange power and remarkable performance for any size shooter. Considered the worlds most adaptable muzzleloader, it's unique break open hood makes it easy for both left and right handed shooters to access the breech. The Impact's adjustable butt stock features a removable 1" spacer, giving shooters the ability to achieve a perfect fit. The Impact SB Muzzleloader comes standard with factory installed,