BKL BL100
The BKL BL100 is a bubble level designed to work with all BKL mounts. When screwed into the side of the mount, it sticks out the side where it is easy to see. It will not work with other brands of mounts. But if you already own a BKL mount or are intending to purchase one, this is a good item to add to your purchase list. A bubble level really helps a lot with cant. Cant is a condition where the rifle is not flat when shot and that results in poor accuracy results. But it is easily solved with a simple bubble level which shows whether the shooters is holding the gun steady and flat. That can help improve accuracy results by a large degree. Be sure to check out this item when considering a BKL mount.