'Anonymous' has asked what the swinging captive eye looks like.The DMM Revolver is designed to accommodate the 12mm bar of the anchor ring and to 'lock' it in place - 'lock' meaning the carabiner cannot slide freely away from bar.
The locking mechanism is released when the carabiner is opened. The Revolver can be attached to the ring on the TreeMOTION in the same way.
