What is the Current “Issued” Manual for Assembling/Gunsmithing the M16/M4 Family of Rifles? Looking for Something that Defines Proper Milspec Techniques.

Howdy all, I’m hoping this is the right place to ask this question - if not please let me know.

My main goal with this post is identifying what is currently recognized as the go-to manual for assembling/gunsmithing the M16/M4 family of rifles.

Based on my limited research, I was able to find the “Operator’s Manual for M16A2, M16A3, M16A4 and M4/M4A1” (ARMY TM # 9-1005-319-0) but noticed this was published in 2010. Is this still current?

Also, it’s a great document that teaches a lot about cleaning/maintaining the weapon, but I was hoping to find something more in line with assembling the rifles themselves. Something that outlines what grease to use on barrel nuts, what torque spec is recommended for muzzle devices, etc.

SOTAR has been a great resource for me, but his videos are hard to keep track of and organize. I would like to print out a physical manual that I could reference.

Any help would be greatly appreciated.