August 29, 2013 A review of the Tango Down iO Cover for the Aimpoint Micro T-1. The iO Cover fits Aimpoint T-1/H-1/R-1 Optics. 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)