New Custom weapon and Weapon mods

Hi, its posible to make a grip for allmost assault rifle and the Grenada Launcher M203 for more assault rifle.
And if is posible to make the Ares Shrike, multy task weapons, works in LMG mod and AR mod, have a grenade launcher for both!
Battlefield 4 and Ghost Recon Advanced Warfighter 2 have this weapon.
http://www.imfdb.org/wiki/Ares_Shrike
http://www.imfdb.org/wiki/Battlefield_4#Ares-16_MCR
http://www.imfdb.org/wiki/Ghost_Recon_Advanced_Warfighter_2#Ares_Shrike
this is the info about the weapon and the mods.
http://modernfirearms.net/machine/usa/ares-shrike-e.html
Thks for all.
Replies
The animation for this weapon can be the bootleg if you use the drum mag, if you use the box mag the ksp works fine! and the GL we have too!