Sci-fi Proximity Grenade

-Can be thrown as hand grenade or planted like a mine thanks to nano structured 3 dimensional lens. Timed explosion for precise destruction like the old C4 is also possible. Finger print scanner on top is used for activation and protection against unknown individuals.
-Tried Zbrush hard surface once again and it was much better this time, much faster than my sci-fi pocket watch https://skfb.ly/6pFDV. Concept sculpted in Zbrush, retopologized in 3DS Max, textured in Substance Painter. Low poly final model had 4k triangles, thanks to prooptimizer modifier in 3DS Max I was able to cut it down by 700 triangles, to 3.3k, for extra optimization, without any bigger unwanted deformation. Looks like I will stick to this workflow when working on an organic like hard surface models.