[Karagin]

I got my information from a currently serving Captian in the USMC, is that good enough for you? Also, there are reports that they are switching over making the rounds through the military newsgroups.

https://www.marinecorpstimes.com/new...m16-to-the-m4/

And here is one saying the M27 will replace all M4s

https://www.popularmechanics.com/mil...assault-rifle/