Yes. I understand, but one of the two guns shown is a semi-auto DDM4 with the standard, factory DD stock, and an attached bi-pod (it is 5.56mm, too). Up to 4 DD rifles were found on location.
Any “civilian” DDM4 would be modded from its original semiauto function in order to fire full auto, unless he went to some real trouble and paid out some heavy cash. But they do make full auto versions (they supply for military).
DD is a solid, America-first company. This is a real FU to them as this could get them very unfair attention.
New photos from the room here, including perp’s body.
He looks to have on a black glove.
http://www.dailymail.co.uk/news/article-4944234/Two-23-rifles-inside-Stephen-Paddock-s-room.html