Hi all, I was lucky to get in on this most recent LMG sale from TI but have always secretly wanted just a regular rifle model. The bent receiver threads over the last couple years though have really left a sour taste on my mouth... I scoured various threads and from what I can tell the 2017 fixed stock models seem to be the most affected ones. Is that the case? I will most likely be looking to get a folder. Is there a specific serial # that corresponds to the specific years or do the 2018 and 2019 rifles have the year stamped on the receivers like the 2017 ones?