Vietnamese modernized Tokarev with an Acro cut
Artisanal 15rnd .22 mag Fillipino revolver, this is as far as I can tell the highest capacity single barreled revolver ever.
Captured VKS 12.7X55mm rifle (there is a small chance this will make it's way to the Royal Armories or another European gun museum/collection and either Jonathan Ferguson or Ian will make a video on it so I can finally once again see the baffle stack)
Halo-Point
Clear photo of the Keltec full auto PMR-30
HK Style gas tube/charging handle "VR-LPS" for Vityaz style firearms by Russian company Vector 7.62
Chinese Type 63 paratrooper model
Experimental vietnamese modification of an M16 into a RPK style automatic rifle
Saiga "Svarog" competition rifle, .223 chambering, lightened bolt, adjustable gas, left and right side charging (look at the safety notch, you can see through the receiver) and a Sureshot MK.2 Chassis
very poor quality image of a prototype Sureshot Armament (Russia) PCC that incorporated a P7 Style gas delay mechanism
Hoplite Industries (new zealand based digital nightvision company) "Xiphos" bullpup conversion of an Excel Arms MR-22
PP-71 integrally suppressed smg
An interesting rifle with an even more interesting doohickey on it. The rifle is a prototype transitional model between the AK-12 Obr. 2020 and the Obr.2023/AK-12M1. Must have been before the implemented the updated handguard.

The doohickey is the "GPR-20" which from what I understand from Google/Yandex translated Russian is an experimental grenade launcher that continues the evolution of the Russian caseless grenade design. From what I understand the GPR-20 is a two stage completely caseless rocket propelled munition. I assume that the munition has an "expelling charge" like on an RPG that propels it a safe distance from the firer before then igniting it's main propelling charge. That is, every canister attached to the launcher acts as it's own barrel. I have no idea whether that's a good design but the Russians tout that they could theoretically dramatically increase the size of the munition without much of an engineering challenge. They also claim recoil in comparison to some 12 gauge loads.
Pre-SMO donbass
PKM with a 240 heat shield and a chopped stock for some reason
MK-12 Mod H SPR upgraded with a KAC URX4 rail
Back in the day, before the SCAR Program, KAC, LMT and Robinson Armament competed in the SPR-V (Special Purpose Rifle-Variant) program that wanted to make a multi-caliber SOPMOD compatible rifle. Robinson submitted a variant of their M96 (The RAV-02, pronounced "Rave"), which was kind of sort of like a Stoner 63, but not really.
Interior of a Recover Tactical "Pix" Chassis
Lastly, something interesting I noticed.
On August 31st small time guntuber Czech My Guns uploaded to fairly little notice a video featuring not only the obscure ZB-47 submachinegun, but none other than Ian McCollum, in the midst of recording a video.
Ian uploaded his video on the ZB-47 on the 23rd of December. So Ian recorded a video in either late August or early September and only got around to releasing it in late December. Gives you some potential insight into how deep he keeps his video stash.