Thwew's 2 ways to go about scoping a blackhawk. The first is gunsmithing type that requires drilling and tapping the topstrap. The second method is no gunsmithing clamp on type mounts such as B-square or s&k. It's easy to see that the drilled and tapped version is rock solid vs the clamp on mount,but the clamp on mount will not permanently alter your handgun. You need to decide which type scope mount is best for you.