Seems @Tyler Kemp is making some products that are in need of, for some of us.
Good job Tyler! Maybe a 36mm
Turret Magnifier
Turret Magnifier The MK Machining Turret Magnifier easily mounts to your scope tube and provides an approximate 3x magnification allowing for easier viewing of small markings on your rifle scope turrets. Features an easy to remove magnifier which makes changing out lenses a breeze. Includes...
mkmachining.com
Good job Tyler! Maybe a 36mm