There are now a couple 3rd party companies producing xenos aegis defense lines with the gun. The noisiest of course is Chapterhouse Studios with the latest Kickstarter to produce xenos defense lines.
Chapterhouse started a kickstarter a few days back, and while I have not picked up anything from Chapterhouse in the past, they have had some fun projects. Of course we all know about the lawsuit. So here is a link to their sci-fi trenches and emplacements terrain kickstarter.