It took me a few Modern Warfare weapons to realize that maybe it's better to have a separate pack that applies vertical grips to various weapons, instead of continually adding the same textures and model of vertical grip to every single weapon.
Vertical Grips are added to weapons whose animations hold the weapon with a vertical grip by default, such as the vanilla F2000 (Union) or vanilla UMP (Jackal). Custom weapons who have custom Vertical Grips in CAFCW also get these vertical grips.
All of the following vertical grips confer +4 Accuracy, -1 Concealment:
-Merc Foregrip
-Lockgrip Precision 40 Grip
-HEX40 Grip
-Schlager Tango Grip
-VX Pineapple Foregrip
-OP-X9 Grip
-Operator Grip
-TV Wrecker Grip
-Bruen Tilt Grip
-Expedite Grip
-Daniel Defense Picatinny Grip
Angled Grips are added to just the vanilla SCAR-H (Eagle Heavy) or vanilla TTI (Contractor). Custom weapons who have the Angled Grips category added in CAFCW also get these angled grips.
All of following angled grips confer +4 Stability, -1 Concealment:
-Commando Angled Grip
-Edge 47 Angled Grip
-XTEN Gravedigger Angled Grip
-FTAC Ripper Angled Grip
-DEMO Cleanshot Angled Grip
-FTAC Tiger Angled Grip
-FSS Sharkfin Grip
-Agent Angled Grip
-Bruen Sync Shot Angled Grip
-XTEN Drop Angled Grip
-XTEN Nexus Angled Grip
-Phase 3 Angled Grip
Known Issues:
-Some weapons such as Contractor or Northstar do not add a Keymod/MLOK panel to mount vertical grips onto.
-Some of the angled grips dont mount up on all custom weapons correctly. I tried to modify the grip rigging on my weapons to consider grip compatibilitiy, but there's not much more I can do about others' custom weapons.
Probable Future Asked Questions:
Q: The name of (x) grip is incorrect!
A: I dont actually have the full game/all the unlocks in DMZ, so the best I can do is compare the GUI images with online wikis/obnoxious Youtuber videos.
Q: MW2022 Optics?!
A: Frenchy is supposedly on the case.


but the grip looked so cool on the car4! i thought it was finally possible to make beautiful guns in payday..
If you don't mind doing a bit of work, you can re-add your desired weapons to the list of attachments.
Open up the main.xml with any document/text editor such as Microsoft Word, Notepad, etc.
Every attachment will have two lines of code:
<weapons>
(lines of code)
</weapons>
To add the CAR4 to the list of weapons, insert <value_node value="wpn_fps_ass_m4"/> between every <weapons></weapons>. It should look something like the following:

Repeat process as needed.
If you want to add other weapons, such as the AMR16, you would follow the same process of adding <value_node value="weapon_id_here"/> code.
For example, the AMR16's internal name would be "wpn_fps_ass_m16", so you would add <value_node value="wpn_fps_ass_m16"/> between every <weapons></weapons>.
@RJC9000
will try it out. thanks a lot!
@RJC9000 Can that be added to an update? To work with more weapons of the game?
@Neversoft
When the attachment pack initially launched, all of the vertical grips were originally available on weapons that "normally" get vertical grip animations in addition to the CAR4/M4A1. When equipping the CAR4/M4A1 with a vertical grip, there was no change to the ingame hold animation and would result in the standard M4 handguard hold with a vertical grip attached due to hold animations being fixed per weapon. I then removed the CAR4/M4A1 from the list of supported weapons and then heka was disappointed I removed the CAR4/AMR16 from the weapons list despite the obviously bugged hold animations, hence why I gave the instructions about how to manually add weapons.
I dont plan to add weapons that do not natively support vertical grip animations, though you are free to use the instructions I put in this comment chain to add your favorite vertical grips to your desired weapons.
If you want something that overrides hold animations on vanilla weapons to use "correct" hold animations, Extra Attachments Compliation+- is something you might want to look at.
https://modworkshop.net/mod/21649
@RJC9000 Thank you for the reply. I was using Extra Attachments Compliation+- but it's bugged so I was looking for replacements and saw your mod.
I was hopping for like a vanilla standalone vertical grips pack. Again, Thank you for the help.