Hello, I'm quite sure this kit fisto head is real lego but I can't find any stamp. I bought the whole 9526 set and every figure has a lego stamp but the
Lego Kit Fisto-core
Amazon.com: Lego Star Wars Llavero "Kit Fisto" : Juguetes y Juegos
Lego Kit Fisto 9526 con Cabo Episodio 3 Minifigura de Star - Etsy España