Ordered four of these mags. So far so good. All but one will lock the slide back on the last round fired on my STI DVC Omni. The fourth mag will lock back occassionally. I haven't modified the gun or the mags other than adding a Surefire X300U and a Trijicon RMR. Fit and finish looks very good. I can load 21 rounds of 9mm in these 140mm magazines.
Shipping was very fast.