I ran across the photo above on the PATFORSWA Facebook page. (The photo was posted in Oct. 2022.) For some time, I have been advocating for improvements over our existing crew served .50 caliber mounts, if not outright replacement, then at least better protection and greater accuracy. When I saw this photo, I was pleased to see this more sophisticated gun sight. I believe this is the sight I did a 2017 post about. The post was in reference to a report from Defense News. There is a night vision version of this sight.
I don’t have any knowledge about the extent of the use of this sight. It may have been a one-of-a-kind evaluation, but I found it encouraging. It is perhaps, something to look for. Would not hurt if these became standard on all cutters.
Late addition:

Screen grab. Flexrotor launching from USCGC Emlen Tunnell (WPC 1145). Also note the sight on the M2 .50 caliber machine gun mounts.

Recently saw a photo from December 2022 that showed this sight mounted on USCGC Emlen Tunnell while underway. I have added the photo to the post.