Is this 3D model free to download?

Yes, Suomi KP/-31 - submachine gun replica is free to download from MyMiniFactory. Open it in the free Thinger app, or use the "Download from MyMiniFactory" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by MyMiniFactory. Use the "Download from MyMiniFactory" 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 Ilkka, published on MyMiniFactory. 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.

Suomi KP/-31 - submachine gun replica 3D printable model by Ilkka

Suomi KP/-31 - submachine gun replica photo 1

Suomi KP/-31 - submachine gun replica photo 2

Suomi KP/-31 - submachine gun replica photo 3

Suomi KP/-31 - submachine gun replica photo 4

Suomi KP/-31 - submachine gun replica photo 5

Suomi KP/-31 - submachine gun replica

Source: MyMiniFactory by Ilkka

The Suomi KP/-31 - submachine gun replica is a free printable 3D model from MyMiniFactory by Ilkka. ADDITION 22.12.2023: Straight magazine added as a remix: NOTICE 27.7.2022: There are two versions of bolt operation. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from MyMiniFactory

95 saves Source: MyMiniFactory Updated 2026-10-22 License: CC-BY-NC-SA · non-commercial

Tags: gun, props, ww2, replica, submachine, historic

About this model

ADDITION 22.12.2023: Straight magazine added as a remix: NOTICE 27.7.2022: There are two versions of bolt operation. One is spring-operated as in the Guide, and the other is rubber band operated as in a picture above. It the rubber band is too strong, use only one side. Files for the rubber band version are identified by postfix _rb: bolt_rb.stlend_cap_rb.stlbolt_spring_support_rb.stl There is also a new version for the the trigger mechanism, identified by _v2, It is operated by rubber band or by a piece of ball-point pen spring, as in a picture above. It allows activation of the bolt also when the safety is ON. The files for the new version are: mechanism_case_v2.stlmechanism_inner_v2.stlmechanism_outer_v2.stl END OF NOTICE Update 12.8.2022: Minor modifications in drum_base (v2). Added sh…

Frequently asked questions

Is this 3D model free to download?: Yes. Suomi KP/-31 - submachine gun replica is free to download from MyMiniFactory. Open it in the free Thinger app, or use the "Download from MyMiniFactory" link above to open the original listing.
Where is the STL hosted?: The download is hosted by MyMiniFactory, not by Thinger. We link you directly to the original listing by Ilkka.
Who made this model?: Designed by Ilkka, published on MyMiniFactory. 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.