I use the ring buckles and the Harbor Freight polyester webbing. The last time I checked I think everything weighed in at about 6.8 oz including 2 x Camp Nano Biners, 4 descending rings, and 15' of webbing. I have trimmed my webbing down to 10' length but I have not weighed it since I did this.
“Light thinks it travels faster than anything but it is wrong. No matter how fast light travels, it finds the darkness has always got there first, and is waiting for it."