Here we have a Tamron adapter for Konica camera bodies. It comes with a rear cap.

With this Tamron adapter mounting system, Tamron Adaptall lenses simply and securely mount to any Konica manual focus camera. The lens mounts are undamaged and tolerances are tight.

If you're unsure if this adapter will work with your application, ask and I'll be happy to help.

It will be carefully packaged and shipped immediately.