problems with metrics when importing models from blender

Hi people!
I have the following problem: I’m trying to import a revolver model from blender into the engine. In blender I specify the size of the model as 20 cm (reference for a real weapon). And when I transfer it to the engine, the model is much larger, the engine ignores the size of the model I specified. When I reduce the model in blender and try to make the final model in the engine match the size I need, the physics asset is not created with the message “the bones are too small to create a physic asset. What should I do?

Hi. Maybe you didn’t applied the scale of the bones in blender. Select the bones, then hit CTRL+A → rotation and scale