The set-up for my 981t uses "low" Leupold QRW 1" quick release rings on top of a DIP (Diversified Innovative Products) scope base. These are Weaver-type products that create a very stable set-up. As you can see, the rear buck horn site just clears the front scope objective. Scope is a Weaver 3-9x32 Classic Rimfire AO.
Good luck with your project.