Is a "Socom 16" some kind of Beanie Baby?
I've heard talk of a lot of problems with the short M1As. Those M1As aren't cheap at around $1500. Is your friend fully aware of what he's getting into?
http://www.defensereview.com/modules...rticle&sid=558
http://battlerifles.ambackforum.com/...ic.php?t=31634
The 18" Scout/Squad has been more reliable.