M4A1 GL/SSC Technical/Information Thread.
In this thread, I wanna talk about a little known M4A1 varient, (that I'm not actually sure even recieved an official designation) known as M4A1 GL/SSC.
All the information I have is that it was a SOCOM barrelled 12.5'' M4 with full auto, and a DD rail, and I think it used a grenade launcher.
There doesn't seem to be much information on it, though I suspect it might have been a possible replacement for the Mk. 18.
Also, there are rumors that it's still in the pipeline in the US Army/Marines, and uses a KAC URX II MID rail system.
What else does anybody know, and where did they find their information?
http://www.flickr.com/photos/stickgunner/7187001989/