October 30, 2013 A comparison of the HSP D3 Chest Rig and Mayflower UW Chest Rig Gen IV. Share this gun video:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)