Fairfax (Virginia) Police with an MP-7 and a really short LWRC (possibly in .300 Blackout), both guns are equipped with Delta P Suppressors
Ukrainian PKT Conversion
Wilcox Fusion AMP Powered rail, allows for the powering of lights and lasers with no pesky wires
You thought the stuff we had today was stupid and gimmicky, well you've never heard of the Stock Pivot Adapter from AR-Master
Captured AN-94 in Ukraine, the era in which this picture was taken is unclear and it is also unclear whether this is a functional example or a Dewat/demilled example used for civillian weapons familiarization done by the group the watermark belongs to
A swedish guy has taken the guts of an HK SL6 roller delayed semi auto hunting rifle (which a variant of, the SL6A2, has a 2 round burst mechanism but is a civilian hunting rifle?) and turned it into an AR with essentially custom everything
A whole lot more pictures can be found in these links
CAD Rendering of what was supposed to be cased telescoped 5.56 round (supposed to be able to fire a "lightweight" projectile at around 2kfps at 36k PSI ) to be fired out of a modified Ruger Redhawk by CunCAD Dev Nikolai Romanov
I say was supposed to be because now he's talking about a more DIY design that he claims will allow Rifle pressures to be achieved. The ammunition is going to be a printed body with aluminum endcaps
I have no Idea if any of this stuff will actually work but if it does it will be very cool, and probably the first revolver thingy to ever use CT Ammunition.
Possibly the most in depth English language video on the AKV-521 in existence, and from the owner of Sureshot Armament no less.
Curiously, the video claims that there are only 7 521 series guns in civilian hands in Russia.
Very curious and forgotten rifle, Uses a URX4 Handguard (which is notable, because that would make these guys the only people KAC ever acted as an OEM for in that regard to my knowledge) and has a trilug mounting system for its suppressor(which is also unique for a .300 Blackout as Trilugs are not really suited for rifle cartridges.
More Pistols with More comps, There was also recently a new Comped Hellcat offering from Springfield. Compensators are to un-suppressed pistols as Flash Hiders are to un-suppressed rifles
I have found a very interesting blog, A machinegun enthusiast has detailed his various experiments with his firearms and in particular his efforts to make them smoother and more enjoyable to shoot
In this post he goes over his effort to make his FA AR have a recoil impulse like that of the Ultimax 100 (or even the KAC LAMG but everyone in the context of Constant recoil always refers to the Ultimax because there are like 100 LAMG's in existence) which Jim Sullivan designed to employ "Constant recoil"
He was able to get an 11.5 mid gas gun to fire at
498 rpm
Comparison to the VLTOR A5 system to the Tubb Flatwire spring
Two articles on converting a CMMG RDB to have a fixed ejector and a CMMG Dissent to no longer be bufferless
His youtube channel where all the slowmo footage mentioned in the article is posted