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) Facebook Click to share on X (Opens in new window) X Click to share on Pinterest (Opens in new window) Pinterest Click to share on LinkedIn (Opens in new window) LinkedIn Click to share on Tumblr (Opens in new window) Tumblr
