I been working on something pretty long lately and so won’t have anything meaty up for today 7-19-2018 since It will be a few days before it is finished. So today I am posting this and another shorter post later this evening. This is something I am often asked about from people who are interested in getting a Unertl for a rifle they have . This info sometimes can be hard to track down. It also shows some interesting options available at the time. If you have an old target rifle or varmint rifle with the old hole spacing it may still worth tracking down these bases and putting them on the gun to complete it.