In 2014, American firearms designer Jim Sullivan offered a online video interview concerning his contributions into the M16 and M4 relatives of rifles although Doing work for Armalite. A noted critic in the M4, he illustrates the deficiencies found in the rifle in its recent configuration. In the video clip, https://collinylvfy.blogtov.com/9993818/the-best-side-of-knights-armament-carbine-length-quad-rail