Small pistols can present big problems under stress reloads. On top of limited magazine capacity, undersized controls can hamper -or even prevent- a proper reload. The stakes are clear in that event. Don't run the riska |install a Vickers Tactical Slide Stop. It features the same positive V-shape with deep serrations that enables fast manipulation, in both directions, found on the original VT Slide Stop. A huge improvement to the Glock(TM) 42.Fits Glock(TM) Model 42. Will NOT fit Glock(TM) Models 25, 28.