Nope, not for skirmishing, even for those with a mean streak. These MadBull new products are aluminium and glass BBs specifically made for target practice, and we don't know if they'll be accepted as ammo for competition purposes. Made without bubbles, the aluminium version weighs 0.30g and the glass one is .28g. We guess this is more for precision target practice of those who have sniper rifles or airsoft guns with high FPS. We state again: NOT FOR SKIRMISHING.

Glass BB .28g

Aluminium BB .30g