M14 Fire Selector Replacement

Made for my airsoft CYMA M14 EBR.
Unlike most fire selector plates mine is half metal and half plastic, this part being the plastic piece.
This piece fit in perfectly without much of an issue (after several iterations of minor adjustments). I kept the screw holes smaller than that of the original (now at 1.75mm) so that you can use smaller screws or tap your own holes at the proper place.
Also created a simple, rough stress test simulation for the piece.

Designed and tested using Autodesk Inventor Professional 2017