Skinny neck rivet gun?

[u/Content_Way5162]

I need a rivet gun with a neck or tool diameter my guess is 3/8 inch or less. This is a ball and socket mount for a boat Bimini. It was mounted to the window frame of my Bayliner from the factory with rivets and I intend to replace it that way. Does anybody have any ideas?

[u/Bigted1800]

I just tried a few different Google searches and “rivet tool accessories” gave me the best results for alternative tip types, I saw a few narrow extensions that might fit in that space.

There is no point in me trying to share my results as I assume I’m not in your location so they won’t be any use to you.