Is this 3D model free to download?

Yes, Mounts for 21mm Picatinny rail is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by Thingiverse. Use the "Download from Thingiverse" link on this page to open the original listing and grab the file, or save it to your print queue in the free Thinger app.

Designed by Holzfaeller, published on Thingiverse. Please credit the creator when sharing your print.

Can I print this at home?

Yes. This is a printable 3D model intended for home FDM and resin printers. Check the original listing for suggested print settings.

Mounts for 21mm Picatinny rail 3D printable model by Holzfaeller

Mounts for 21mm Picatinny rail

Source: Thingiverse by Holzfaeller

The Mounts for 21mm Picatinny rail is a free printable 3D model from Thingiverse by Holzfaeller. Use this to attach something to your 21mm picatinny rail. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

Safety & legal notice: this listing links to a third-party design that may be a functional accessory. Thinger is a search index. We do not host, sell, or manufacture any files or parts, and the download is provided solely by the original platform and creator. Verify that downloading, printing, or possessing this item is legal in your jurisdiction before proceeding. See our Terms & Content Policy.

30 saves Source: Thingiverse Updated 2026-10-24 License: CC-BY · commercial OK Category: 3D Printer

Tags: 21mm, cosplay, M4 nut, mount, picatinny, rail, Softair, weapon

About this model

Use this to attach something to your 21mm picatinny rail. I use M4x30 Screws with heatshrink applied on threads to prevent scratching the rail. For me Pla+ with 100% infill works perfect for stuff like this.

Frequently asked questions

Is this 3D model free to download?: Yes. Mounts for 21mm Picatinny rail is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link above to open the original listing.
Where is the STL hosted?: The download is hosted by Thingiverse, not by Thinger. We link you directly to the original listing by Holzfaeller.
Who made this model?: Designed by Holzfaeller, published on Thingiverse. Please credit the creator when sharing your print online.
Can I print this at home?: Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.

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Mounts for 21mm Picatinny rail

About this model

Frequently asked questions

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