Welcome to the forum. I believe it probably is a frame to a toy gun. It looks more like a aluminum casting than a steel milled frame. Maybe someone else has better info but that is my guess
A community dedicated to Lugers, Central Powers, Axis, Allied and related WW-I and WW-II pistols by their scholars, collectors, owners and enthusiasts. Come join the discussion about the history, technology and extraordinary background associated with these design masterpieces.