June 19, 2013June 13, 2013 A quick review of the Umbrella Corporation lower receiver assembly and upper receiver straight out of the box. 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)
