Know anything about glocks? O.o

I want to know if anyone has tried a grip reduction on a Glock before? If so, what material did you use to fill in the gap on the grip (if you used any filler at all). I always see people using hot glue to fill up the gap. Has anyone tried to actually find the same material that Glock uses on their frames and melted it into the frame as a filler? I hear the material is called nylon-6 or something like that. If worst came to worst, I was just thinking of buying an airsoft replica of the glock and melting that down. To be honest, I don't even know where to buy nylon-6 at in a raw and un-molded form like a block. If anyone knows, please do post :D thank you everyone