Dragunov SVD variant. Not an AK.
I looked at more of the videos. Looks like maybe he was in Syria with those Marxists. I doubt that they liked him, though. ;)
https://www.youtube.com/channel/UCBOzj16BaNl4qm5xYvpX5PA/videos
Thanks for the info on the rifle. I fired quite a few different U.S. weapons on ranges but not any Russian stuff.