Picatinny Rail Section

03/13/2023 - Added 1/32" bevel to flat bottom perimeter of rail to account for elephant's foot. Be sure to rotate before slicing so flat bottom is down. Slice with 4 wall passes, 50% infill, and gyroid infill pattern to improve shear strength in longitudinal direction as weak areas are around screw holes. This becomes critical when extending rail from supporting base as in the case of the Mossberg500 tube rail adapter, below, and in pictures.

Print yourself flat bottom Picatinny rail sections. Be sure to rotate the STL file before slicing so slots/rails are UP. Rail has middle slot so that flashlight holders align in the middle of the rail. The attached Fusion 360 file and STL file are for a 2" section but the Fusion 360 design can be extended to any length. Added STL and gcode for a 1.5" section and 3" section as well. Screw attachment points are 1 inch (25.4 mm) apart and are configured for #8 or 4 mm (M4) button head hex screws. NOTE that these designs support my Mossber