While making some content for YouTube, I had rested the barrel against the edge of the desk while messing with the magazine tube. Turns out that's enough to scratch the "Aqua-Tech" finish on the 1301. I'm not an expert, but this looks to be some type of cerakote.
There's absolutely no info about this coating and until now I wasn't sure what it was.
The scratch bothers me a bit, but I'm dealing with it.
Here's the new GG&G follower to make up for it.