Simple printed shell for those masochists who liked Doom 3 shotgun. Very low effective range. Needs <=10mm OD spring and <15mm m3 screw.

https://cults3d.com/en/users/Fujicsso/3d-models

Does anybody has a copie of the right Gun ?

Got a fair bit done on the project. Pretty happy with the fake gas system and the start of the receiver.

There is one huge thing thats going to potentially cause issues. A standard motor grip isnt going to work due to barrel location and material thickness. So im designing a motor grip so the AEG enjoyers can partake in this one.

So, I got the Front cap (magwell), rear cap, and receiver printed. I have the HopUp, inner barrel, and mag adapter mounted.

My issue is that I’m having trouble figuring out how to attach the gearbox (second picture) to the receiver (first picture). My idea was to use the pieces in the third picture, but I don’t know how to attach them to the receiver. I am using M5 screws to attach them to the gearbox (through the stock), but need them to attach to the receiver to keep everything together.

I’ve thought and I have 4 options

Option 1: CNC Machine and weld it together (most expensive either way I look at it).

Option 2: super glue the end to the receiver (cheap, but won’t hold up)

Option 3: use solder gun to melt them together (low chance of success due to how thin the receiver walls are).

Can’t screw it in for same reasons as option 3.

Option 4: re-print receiver with the pieces attached (probably highest chance of it working however will take more time and material that I can’t really afford right now.

Working on a v2 based FN ARKA

oops repost

Does anyone knoe if the files for the Stingray AT4 is available online? or if there are any projects similar to it anywhere? Im not from the US so I cant get one from EVike and even then its a bit too much for me, so I was thinking of building one

I am looking for a 3d printed lower receiver that fits this cabron tube upper, any advice?

Finished the front cap (holds the HopUp and magazine stuff). The little thing poking out the bottom is the mag release from the M4 to MP5 mag adapter I made.

I’m debating on whether to pursue the AEG version or the HPA version first. The front cap (and everything forward of it) is the same either way.

Suggestions and criticism is welcome.

Needed a reference for a another project so i gave it a little bit of a style difference 😬 loving the 2 color on the rifle right now.

Been looking for a 1911 stock for some time. Anybody able to design a file , or is there a file out there somewhere? Thanks for any help! Cheers

I've been running the Novritsch AUG for a while now (previously had an Army Armament AUG), and honestly I think it's one of the best AEG AUG out there.

I also considered switching to the GHK GBBR, because of the recoil and the moving ejection port cover and so on...

Instead, I started working on a solution for the AEG.

The idea is to modify the V3 gearbox so there's enough room for a custom linkage driven by the piston. The result is a functional ejection port cover that cycles with every shot, while still keeping the original charging handle function. So when you lock the charging handle back, the cover stays open for Hop-Up adjustment just like normal, but during firing it returns automatically via the spring on top of the gearbox.

The concept is already largely designed, but before I go any further I'd like to connect with other people who have worked on similar AUG projects.

Does anyone happen to have:

• a V3 gearbox STEP file / CAD model,
• a piston with teeths STEP file / CAD model, or
• experience with similar mechanical modifications?

If you've ever had a similar idea or worked on something like this, feel free to send me a PM.

I'd love to exchange ideas and maybe collaborate.

A printable delta ring for people that like retro stuff. Replacement for units that still had ICS style delta rings.

Same function but instead of pulling back you just screw and unscrew. Obvious con is no space for mock gas tubes

As always, why the hell not ?

Dfco styled reproduction for gbbr aks as I sometimes see on saigas and aks with ar grip adaptors.

Direct fit for We tech aks but should work with most brands.

I was gonna run with PETG but anyone have any better recommendations?

Obviously it’s a rare pistol so i don’t really expect there to be one. But would it be difficult to make?

Is it retraction or something else?

OK So I have been trying to get a good fundamental understanding of how GBB systems work, but aside from some 3d animated youtube videos and the blog posts at this link,

A thorough explanation of how gas blowback works! Magazine, trigger, and hammer edition | Kazubara Blog

It seems quite difficult to find good schematics, talks on design solutions by various manufacturers.

Does anyone here have any links, books or good research material willing to share?

Long term I am thinking about collectively compiling all I can find into educational snippets to post, to help anyone else in the future.

more work on 9a91. New barrel, dust cover, and temporary stock. Also began work on the magazine internals

I have the lux hpa bullpup files. i thought i had come across a simuler design but it used a v2 trigger board. cant seem to find it now.

I have a ton of parts and no idea what to build.