This will be updated as I find new weapon drops or have them sent to me along with a screenshot of the weapon in your inventory. Once I'm back on my main computer I'll try to link videos for each or at least in-game screenshots.
Primaries:
Assault Rifles, Submachine Guns, Sniper Rifles, Heavy Weapons, Specials (WIP - Looking for submissions in given format)
Secondaries:
Pistols, Launchers, Specials (Secondary) (WIP - Looking for submissions in given format)

Weapon Drops can come from both Supply Drops and from challenges. You can also unlock some items by upgrading your Exo in the singleplayer, and by completing certain objectives in Exo-Survival (such as the HBRa3 - Lead Launcher).

Interesting Notes:

If a weapon is listed as having a given attachment equipped (such as the RW1 - Holiday (which is fantastic by the way)), it DOES NOT count towards the Pick-13 system. This means that if you find a weapon with an attachment you would be using anyway, you save a point. This can be very helpful, or very annoying if you do not want the given attachment.

However,

Some weapons (such as the EPM3 - Parsec) have entire attachment categories locked. In some cases (such as the EPM3 - Parsec), you may be completely unable to equip anything but a scope. Depending on what you have to give up for some bonuses, you may want to consider using a lower-rarity weapon.

Icons:

The two magazines next to each other refers to magazine size. (On the Pytaek - Hasty, it adds 25 rounds, a 25% increase. This may not be universal.)

The bullets within a circle refers to reserve magazines. Each icon appears to refer to one reserve magazine.







You are fully welcome to friend me and play, or to send me whatever you have dropped. At SOME POINT SOON I will be providing small snippets as reviews for each weapon, probably when I add the screenshots for gear items. I'll only be doing this because some people may be interested in hits to kill, or just a completely subjective look at a weapon, and I feel that this would be helpful before Symthic gets the game up and the raw stats pulled.

Special Thanks to:
TheFinalFate (A LOT of stuff)
Some Studly Manly Man (Other stuff)
Kazma (Lots of stuff)
Coysonn94 (AK12 - Feeder)
Conargle (MORS - Ransacker)
V1ceC1ty (Bunch o' stuff)
Sol Prime (XMG - Chicken and Waffles (This guy is a serious trooper)
GamingHappens (MORS - Silver Bullet)
Rasmous (SN6 - Jury)
Hikaru (Heavy Shield - Nugget, among other things)
『Naegi』 ~Musicc~ (KF5 - Spanner)
VI ZOMBIES IV (AK12 - R.I.P.)
ky-ky (IMR - Boar Strike)
WirelessPillow (HBRa3 - Insanity, ARX-160 - Adapter)
The Gorog (KF5 Locomotive, KF5 - Sporter, various English translations and a bunch of Elites)
Lopt (Many much stuff)
Stryker (Shields and more stuff)
Tom Cruise (Several RW1s and the Challenge SAC3, and other stuff)
[AGK] Whipdash (XMG - Bacon and Eggs)
Ducky (Bal-27 - Obsidian Steed, among others)
KerZ (Bal-27 - Inferno (We got both Elites in one day. Go Figure.)
Outlaw (Couple of Elites)
Axmom (HBRa3 - Bear fist and HBRa3 - Cowboy)
Speedyy (Lots more stuff)
Xaro Xhoan Daxos (SN6 - Magistrate)
jk 1 exam (SN6 - Money)
Schadenfreude (more stuff)
Volti (Crossbow - Righteous)
HaZar (stuff)
Rikkarz (more stuff)
Doc Cosmic (many much more stuff and stuff)