It can be done but the diameter would need to be the same as the NX05 optics. M*glight has a larger head than the LS so the readily available mineral glass lens doesn't fit.
The bezel would need to be turned deeper to accommodate it or there likely would be a gap between the bezel and the head.
It might be easier to just replace the optics when damaged.
If you opt for a reflector, a glass lens would be worth the trouble.