I recently wrote a blog post for ARES (Armament Research Services), Silah Report is a subsidiary of ARES, about weapons captured by the Taliban during their 2021 offensive which toppled the Afghan Government. You can check out the article here.
This article will go over some of the modifications made to the weapons captured from ANSF (Afghan Security Forces) by the Taliban during their 2021 offensive. These modifications appear to have been made by the ANSF before they were captured.