July 3, 2014 An installation and range demo of the Geissele Hi-speed National Match Trigger, installed in an AR-15 rifle. 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)