I just returned from Staccato Ranch for an event and got to shoot the new Staccato HD that takes Glock mags. It was surprising how well they shot being they were technically still a prototype and the weight they retained in the frame design kept them flat shooting. I didn't think I would care for the sight in front of the red dot, but you get used to it quickly. All in all still a Staccato and if you already have a bunch of Glock mags not a bad investment