he does say he did it because he didn't like the original finish, which is believable as folk do indeed recolor slides for that reason.
front sight just looks like a preference thing, he even says it might not be to everyone's tastes.
*dons flamesuit*
besides, it's a glock, someone will put a speedtacticalpointdefendertigerdragon slide on it with some uberacquireultrabritespeedshot fibre optic sights on it, add a red dot which blocks the sights spend 5 hours with a soldering iron burning the frame for extra grip so they can hip-fire with a 50-round extendo clipazine.
sorrynotsorry