Installation:
To install use open Iv and search for w_ar_assaultrifle.ydr. 
Replace the files located in Patchday8.
Remember to rebuild archive.

These models were created by MAIBATSU of fallout nv nexus. 
http://www.nexusmods.com/newvegas/users/5534177/?

thanks:
MAIBATSU for great models. 
Rockstar for great game.
TrophiHunter for youtube channel.  