Ordered 6 10/20 Black PMAGs with Ranger plates. All were internally modified. They look pretty good visually. Some have minor epoxy showing at the bottom where the Ranger plates were permanently attached but hardly noticeable. The only thing worth noting is that the ones I received were modified by placing a block inside the spring. It's free floating and thus if you turn the PMAG upside you hear the block rattle. It doesn't affect the performance functionally but it's a little weird to have a rattling magazine. Here is the response I got from Ty about why the design is like that.
Yes, there is a block inside of the spring to limit follower travel. It is unsecured due to the compression and decompression when loading and unloading changing positioning of the spring relative to the block.