Yep, they're from the ATF library. I'm surprised a moderator hasn't stopped by and thrown the poadlock on this thread. I asked for a drooly icon a month or so ago looking at these same pics and never received it.
I will say this... Its a shame to have all those military firearms going to waste just sitting there when I could strip naked and spend some quality time with a pair of cotton gloves fondling them in the dark.