In 2014, American firearms designer Jim Sullivan presented a video interview pertaining to his contributions towards the M16 and M4 relatives of rifles even though Operating for Armalite. A noted critic of the M4, he illustrates the deficiencies found in the rifle in its existing configuration. Inside the online video, https://kac-ras-m444740.angelinsblog.com/29040117/helping-the-others-realize-the-advantages-of-m4-ras