Here is a creation of CANNONMIKE, in Oakridge, OR, For those of us that dont want to drill or damage our fine cannon barrels, Mike Moore has come up with this very simple and effective way of placing this sight in the vent hole of your barrel and provide you with an elevating rear sight at a very reasonable price. The quality of the many products I have purchased from Mr. Moore reflects that he is a Master Machinist with many years of experience and a love of cannons.
Note: This is Mike Moore at CANNONMIKE and not the other retail re-seller so called Mikes Cannon.