A man I trust, Kevin Boland, who just recently left KAC to work with FN, who is no fan of the SCAR has relayed by guys he trust that the SCAR ate more than an Elcan or two....A NF, ACOG, Leupy...etc. Whether he witnessed these incidents personally, or passed along to him, I can't recall.
I don't think it is any coincidence that certain manufacturers have begun in the last couple years to specifically state "CAR or (S)CAR rated" on their optics....
Do I think it is as big of an issue as made on the internet? Who knows, but I take Mr. KevinB for his word, and on TOS he has stated what I have written above. W/ that said, airsoft rifles can bring down high dollar optics also. This rifle has brought down optics that were no problem for .50BMG and 300WM. Make with it what you will but the fwd force of that BCG/CH setup is certainly more than any other rifle or machine gun in the game today. Coincidentally that same fwd movement or motion from airsoft is what kills optics.
There are guys on TOS that have had optics destroyed by semi auto SCAR-H's....
I still want one however.