List of 40 guns I found:
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AA99
Beowulf
BigBang
Breach
Bridger
Coachman
Drumbeat
Eon
Equinox
Grendel
HardTarget
InflictorP (InflictorPistol when using bat command use InflictorP)
InflictorR (InflictorRifle when using bat command use InflictorR)
Kodama
Kraken
Lawgiver
M1919
Maelstrom
MagPulse
MagShear
Magshot
MagSniper
MagStorm
Microgun
NovaLight
Orion
Pacifier
Pumpshotgun
Rattler
Razorback
Regulator
Rocketlauncher
RussianAssaultRifle
RussianHuntingRifle
Shotty
Sidestar
Solstice
Tombstone
UrbanEagle
XM2311

In my ongoing and never-ending quest to increase my OPness for maximum pawnage to any who stepped forth to oppose me, I found my armor and weapons severely lacking.
So, naturally I turned to mods for some much needed aid.
I found the Legendary Crafting mod that allowed me to adjust and switch the mods on both weapons AND armor, however, it doesn't add any affects, so if it only has 1 or 2 legendary effects, that's all you can mod.
Then I stumbled upon the god armor and weapons mod which added 3 legendary effects for the weapons, but only 2 for the armor. But in doing more research, I figured out how to add the 3rd effect on armor. (use besthelm.txt, bestsuit.txt, and bestpack.txt to make those items legendary)
These mods are awesome and I added them with extraordinary quickness, but for the longest time I couldn't figure out how to go from basic to superior armor and weapons.
So after more searching and scouring the internet, I finally found the console commands to do just that! (***PSA to be careful when using bat commands from random people on the internet. All mine work well with no incidents, but feel free to inspect them before usage!!!***)

TL;DR This mod adds batch (text) files that let you upgrade your weapons and armor.

You use them just like all the other batch files, which is in the console.
As the author of the Mod Weapon Rarity (Damage) mod noted on his page, the upgrades and damage on weapons stacks! SO KEEP THAT IN MIND WHEN USING THE FILES!!!

I have listed all 40 of the individual weapons I found on various websites, and created a batch file for each weapon included in the zip file.
I have also included a single batch file (upgarmorall.txt) to change any armor pieces from basic, all the way to superior. And it works on helmets, chest (body), and packs.
Oddly enough, armor values don't stack, so you can run multiple times on the same piece with no changes, at least that I noticed in my limited testing.
I also tried to do that with the weapon upgrades I found by putting them all in 1 file (upgguncheat.txt) and it worked a little too well. It took a pistol from like 70 damage per bullet to well over 6k damage per bullet. 
Funnily enough, I thought that was too OP for even me, so I never used that gun or the file again. But it's still included if anyone wants to slay many with that much OPness.

1. Installation Instructions:
Same as any bat file, put the txt file in your GAME Starfield folder. (Mine was \Program Files\Steam\steamapps\common\Starfield)

2. How to activate:
Drop a weapon you want to mod on the floor.
Open console in game. (mine was tilde~ which is right above the left tab key)
Click on weapon or armor, use scroll wheel until you see 'WEAP' or 'ARMO' something on the screen if you don't see it.
Type in the console:
bat <filename>, so "bat upgarmorall" (without quotes or txt) for example.

3. Profit!

Lastly, I've been lurking and looking for mods for years, but this is my very first ever mod, per se. So, critiques and criticism are certainly welcome, but please keep it constructive.
Also, I've included 2 files called Starfield Notes 1 & 2 with more item ids and such for both weapons and armor and that's all that I have pertaining to this. 
As such, I won't be doing any updating and I'm unlikely to take any requests. 
This mod is more so taking bits and pieces from other more skilled, experienced, and talented creators and some research on my part and putting it in a somewhat neat package.
P.S. These are some other mods that really helped me mod and customize my game to my liking:
Research Grind Begone - This completes all research for everything, so you can mod/craft anything as long as you have the materials.
Craftable Ammo and Utilities - So you can craft ammo for all these Superior weapons
All The Materials - So you can get the materials to craft what you want
No Crafting Limit - Cause we go supra et ultra limits around here!