August 16, 2014 The guys at Highjak86 compare the sound levels of their 8.5″ and 16″ AR-15 rifles. 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)
