Add a Really Right Stuff Mk2 Tripod Apex QD Socket Mount to the apex of your Really Right Stuff Mk2 Tripod. This mount comes with a tripod apex QD mount, a 5/32" hex key, along with a custom 1/4"-20 x 0.4" captive button head screw. Easy to attach when you spot that giant mule deer and need to get eyes on him.FeaturesQuick attach Socket Light