Rifle Scopes Quick throw Lever for Nightforce SHV?

They should have one that fits, I would only go with a machined version not a 3D printed, never have them hold up well. The MCM Switchview are my favorite and the new folder models are awesome!

You're doing something wrong if it isn't holding up well. Heck, even MGM copied my design with their "Sportsman" model which is printed, just not advertised as such.

 
I have put a million miles on the MK lever on my SHV in farm trucks and tractors. Anything from 95 degree summers to -20* winters and never had an issue. I can’t see how you’d tear one up unless you go a little too Randy Savage with the Allen key when you install them.