Holy shit! You are so right.

I'm in love with their bullpup too! Damn.

You cannot view this attachment.
https://www.hydraweaponry.com/product/bmp-23/

And the Hydra is crazy. 2 minutes to hand swap a barrel in a different caliber.

You cannot view this attachment.
https://www.hydraweaponry.com/product/hydra-survival-package-4-caliber-kit/

They lack a lot of documentation and demonstration tho. This guy could really benefit from a marketing team. 

Like what is the weight savings between this and separate uppers? .308 and .22lr in this would be a game changer. But it looks like .308 and 9mm is the best it offers. 

But that bullpup?! With an AK operating system in 5.56 bullpup design. It looks so simple, compact and lightweight in a 16 inch barrel! Some rail would be nice though. But man. What a cool rifle.

Why don't they have some videos of the quick swap barrels? Or the bmp 23 in action? There's a little more info in their downloadable catalog. And I love how clean the website is. But they are losing an opportunity to market these better. I can see the advantage but they don't point out any of the advantageous in their website. 

But very cool designs.

Iirc nobody really makes a reliable .22lr AR upper. If someone could perfect that. For say an AR 10. Or similar larger caliber. That would be a survival sweet spot. 

And I can never remember the list of uppers that work on an AR-15 interchangeably. 

Thanks for posting this!

I wouldn't mind having a real-life version of the revolver shotguns Mouse used after the deja vu scene in The Matrix. 

I've also been thinking about a rifle with an AR-15-style gas system but with AR-18 style guide rods and springs instead of a buffer, tube, and spring. Imagine taking an AR-15 BCG and cutting the back off even with the head of the firing pin, and it would be pretty close to what I envision. Why stick with an AR-15 style gas system? Because the gas vents are on the bolt carrier, and the firing gases blow all the crap away from the ejection port as the bolt cycles. The reason for the spring and guide-rod assembly from an AR-18? To build the rifle into a workable bullpup or build it conventional with a true folding stock. 

Olympic Arms did something similar with the OA-98 pistol that came out during the national Assault Weapons Ban. The spring setup in that thing is a nightmare though. 

"All I ask of a firearm is reliability, accuracy, and the capability to drop a god at 800 meters." - text of a button I got at a con and still have somewhere around here

Fantasy firearms? Sure, I'll bite.

M1903A3 and M1 Garand in 7.62x51 NATO that take the same detachable magazine. M1 Carbine that takes either 9mm or 5.56x45 NATO. Mini-14 that takes AR15 mags. An actual M14 or FAL that takes 5.56x45 NATO with AR15 mags.

Quote from: Crimson_Phoenix on September 23, 2025, 09:46:01 PMFantasy firearms? Sure, I'll bite.

M1903A3 and M1 Garand in 7.62x51 NATO that take the same detachable magazine. M1 Carbine that takes either 9mm or 5.56x45 NATO. Mini-14 that takes AR15 mags. An actual M14 or FAL that takes 5.56x45 NATO with AR15 mags.

The Imbel SAR-4800 Sporter is an FAL chambered in 5.56 NATO and takes AR mags via a mag well adapter.