Cabela's is selling out the gloss line of the Warne QD's for Rugers at $45.88. On their website, they only have the high ones left, but I just scored a pair of the mediums at their store in Hamburg, PA.

When I want to QD a scope on a Ruger, I just carry a twoonie.

I'm with Gatehouse.
But hunting etiquette dictates proper QD tool for standard Ruger rings should vary with hunting locale:

Canada: Twoonie
CONUS and Alaska and Hawaii: Chuckie Cheese Token
Africa: 5 Rand Coin