In Part 1 of this article, I talked about the history of the INSAS platform, Part 2 was dedicated to my personal experiences with these rifles as well as the opinions of soldiers I collected over the years.In the final article of the series, I will talk about upgrades of INSAS and the possible future of this weapon platform.Over the years there were several projects meant to improve INSAS.One project that deserves an honorable mention is the little-known bullpup INSAS rifle.