November 29, 2013 A quick look at the CMMG AR-15 Lower Parts Kit, which includes everything needed to turn a stripped lower into a fully functioning receiver. 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)