The SOCOM name was earned after the U.S. Special Operations Command selected it for their M4 and Mk18 carbines.
You can find the video at the 13C YouTube Channel-
|Caliber Rating||5.45x39mm, 5.56mm (.223)|
|Finish||High Temperature Cerakote™|
|Full-Auto Rated||Full-Auto Rated|
|Minimum Barrel Length 556||10″|
|Build Material||Inconel 718|