Straight from the horses mouth at Quantico where they developed the new Stinger. it's an eMagin display with a kopin optical assembly. The reason they are lobbying so hard for money to build a new line for their business is that is that they procure displays from Samsung/eMagin. Ask yourself why would the Government pay for a new line when they have a dependable one from a company with all the money in the world? They are stuck between a rock and a hard place.

Same is true for the F-35 Japan and elsewhere. 

https://www.oled-info.com/kopins-oled-microdisplays-powre-us-armys-stinger-replacement-interceptor-system