This a 3D printable replica of the SIG P250 Polymer frame. Note this is not considered a firearm or gun. Unlike other polymer handguns, the serialized portion of the gun is a different part, allowing you to print this part legally (USA). Please adhere to your countries law prior to printing one.
The gun in the photo above was printed on a XYZ Da Vinci 1.0 3D Printer, a very affordable printer that sells for $499 on Amazon.
The purple color is optional.
Thanks to Jay for the tip.