The file 'Kel-Tec R-50 Upgraded Stock Ver. 2 3D Printer Model' is (stl) file type, size is 1.6MB.
Version 2 of my upgraded stock for the Kel-Tec R-50, I widened the main hole to fit on the stock with no drilling and added a cheek ramp. Print with supports and 30-40% infill. Scale to 2540% if slicer in metric.