The bino, you would have to research on what is best for them. Sometimes they have a stud that installs onto them, and sometimes they only have a ring that mounts onto one side to attach to the tripods.
https://www.amazon.ca/BOG-1117132-Co...s%2C159&sr=8-7
The rifle, well you have two options.
1. Death grip. You mount it on your tripod, and it clamps the rifle in position.
2. Add an arca rail to your rifle and mount it directly to the tripod.