Rugged gear makes good stuff. I have two pair. On the quads for about a month, two trips to camp, and they are in perfect shape. Already pre-treated with Red Sand to prevent initial coating of red sand.
$35 per pair, or $65 for both pair. (four mounts, not one pair of double mounts, two pair, carries two guns each, or other tools, four total)
Again, there are two pair of these:http://www.ruggedgear.com/index.cfm/page/ptype=product/product_id=49/prd49.htm