I just put a few drops of Tru-Oil on a cloth and rubbed it on.
Let it dry overnight and put on a second coat. Used a clean dry bit of the cloth to wipe any oil off the metal ends of the handle.
You can just use your fingers. I always used my bare hands/fingers when doing a gunstock, and Tru-Oil even says that's OK to do. Nothing toxic in the oil.
Tru-Oil is great stuff, and I'm sure will keep the R95 handle looking great.
We need photos from you though, once your R95 arrives!
Thank you for the instructions. Very excited to receive the R95. It will be hard to treat handle before using but I will try to show restraint. Will post pics when finished. Probably won’t get it until next week or so.