This is a skin for GTCinema's M16A1.
https://www.gta5-mods.com/weapons/colt-m16a1-1967-model

As much as I love this M16A1 Model, I wasn't very satisfied with the super clean looking textures.

This skin is to more resemble a realistic and abused M16A1.
I Have also done some shading work to the texture and made the Stock, Handguard and Grip more Black.

INSTALLTION 

#1 If you haven't already, instal the M16A1 Mod and follow the installtion instructions there.

#2 After it is installed simply drag and drop the YTD Files provided in this mod into Weapons.rpf.
GTA V > mods > update > x64 > dlcpacks > patchday8ng > dlc.rpf > x64 > models > cdimages > weapons.rpf

#3 Done!

Now enjoy playing with this unreliable piece of plastic!

Full model and original texture credit goes to GTCinema.
Textures modified by ToXiC BoLTz.