Soldier Systems has the best report so far.
Trijicon Accupoint 1-6X24
http://soldiersystems.net/2015/04/10/nraam-2015-trijicon-accupoint-1-6-x-24/
Ergo Grip KeyMod Forward Rail
http://soldiersystems.net/2015/04/10/nraam-2015-ergo-grip-keymod-forward-rail/
Patriot Ordnance Factory – PSG 9mm
http://soldiersystems.net/2015/04/12/patriot-ordnance-factory-psg-9mm/
https://www.youtube.com/watch?v=uNqXFjQyZDY
From: Soldier Systems