3d printed Outer Barrel Stabiliser for ACR J10 stl file included

Hi All,

Just got my J10 a few days ago and was looking at upgrades and found that 3d printed parts seem to have a price mark up of around 5,000% what a joke.

I own a 3d printer and thought that the point of the 3d printing community was about sharing not profiting.

So i have designed and printed an Outer Barrel Stabiliser for the ACR J10.

It’s a tight fit and works well to fix the outer barrel and cost 20 cents to print.

My blaster is spraying everywhere even with this so will be reading and asking questions on how to fix that in other posts. I’m enjoying so far and excited to get going.

click below link for the stl file


Any chance if just the stl file

Yes click on the link

@excalibre Welcome to the forum and thanks for sharing.


Thanks for sharing but unfortunately I don’t have access to a 3 d printer. Would you be interested in making one for me? I would be happy to pay all costs including shipping and something for your time.

Can you show a pic of it pls?
Im guessing you didnt include a screw?
If so does it slide around when you reassemble.

And where do i send my 20 cents lol nah how much??

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No screws, it clips on the outer barrel, nice and snug.


Nice… I was just in the midst of designing my own to print. What did you design yours in? (and any chance you’d share the design file—I see some possible tweaks, but would love to see your dimensions :slight_smile: )

Sorry I used Tinker ad, not sure what file you need.

I use Fusion 3D, but pretty sure I can convert from TinkerCAD (or at least inspect in TinkerCAD).

ok tinkercad allows me to save/export as obj, stl, gltf and svg.

Which one do you want?

Darn… looks like there’s no easy way to import any of those usefully into Fusion 360. I see TinkerCAD is all online (just jumped on and linked to existing Autodesk account)—is there a way to share/collaborate in TinkerCAD?

If not, all good—I might just your (very effective looking) design :smiley:

And done…

Had to carve out a little chunk in the centre at the bottom (after I took the first two pics), as it kept snagging on tops of the nuts for my bottom rail… But looks good—thank you @excalibre!


Welcome mate! And thanks HEAPS for being one of the Awesomest People Ever who design great sh*t and share it around. I’ve got a few designs going that all need some more good R&D, but I’ll happily share my stuff if it helps people.

I’m stoked to give this a twirl as soon as my ACR gets here.

Thanks again, you rock.

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Most welcome. It has worked well for me as is, happy to share

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If I have time I’ll try and do one with inventor and share that file

The ARP9 review attributes its accuracy to having a tight fitting metal outer barrel. I’ve just ordered several different ones to test on my ACR.

Updated the stabiliser and also added another, the barrel didn’t move at all now, really solid.


Much improvement to accuracy?

Yes a lot. I have changed over to an alloy barrel and using the stabilisers its much more accurate