Ran 35 rounds of WWB through it Saturday morning for the first time. No malfunctions whatsoever. Shot beautifully. Factory sights seem pretty much dead on. I will be getting a few silhouettes to judge exactly how accurate, but I hit where I wanted on some two liter bottles from 7 yards. I love this gun. It has snappier recoil than On some other .40s I've shot, but I pass that off as being lighter than other guns in that caliber. Nothing I can't handle. I can't wait to go through all the ammo my local walmarts have in stock.