T-Rex has released new bits and pieces for upgrading Abrams tank kits.

This is partial text from the full article (usually with photos) at https://armorama.com/news/abrams-bits-from-t-rex
T-Rex has released new bits and pieces for upgrading Abrams tank kits.
Some nitpicks:
The sprockets do not seem to improve much over the Tamiya kit parts other than the pre-made mud holes.
The retainer ring looks a bit off, and it was not attached correctly on the photo sample:
Reference:
Upgrade bits look good though.
It’s correct, I think - with the early style sprocket rings the bolts aligned with the teeth; with the ‘scalloped’ style, the bolts align between the teeth. So if the retainer ring was fitted to a later sprocket it should look like this.
Ah.. I see it now. Thanks!