Some sort of newer M1-A1 I'd guess....SA or some aftermarket jobber.
I am a but curious....if he can take aim like that then why not a rest or at least some chopsticks or his buddies shoulder.....makes all the difference over freehand standing?
one or all of these guys will know.
That scope is a might close to his noggin tooo and the way he's holding it he might be just having a looksee.
silly question snake eaters:...is it common for military snipers to wear "glasses"?
I would agree that it would make a hugh difference if he had a rest to rest the gun on versus a free hand shot like the picture is showing. Maybe it was just a photo op or the target was at an elevation that he could not use a rest, but the picture is pretty wierd looking.
Selector is gone thus the hole near back of receiver....
Stay safe !