PVS-14's are night-vision devices that you can buy on ebay, amazon, and a ton of brick-and-mortor stores. Here's a sample.
So they're readily available, and anyone who wants them can get easily get them. Nonetheless, you're not allowed to export them.
Charles Carper was a Marine. He sole a PVS-14 to a Polish resident and another one (or four) to someone from China. He pled guilty without a plea deal. What should his sentence be?
Does three years in prison sound about right?