Here are pics of the rear mount for the Triebel system that has the spring on the rings vs the mounts permanently connected to the rifle. The square lug on the side of the rings, above the claw and plunger mechanism, is for windage adjustments.

[Linked Image from i.imgur.com][Linked Image from i.imgur.com]

[Linked Image from i.imgur.com][Linked Image from i.imgur.com]