The Beretta factory magazine is designed to give your Beretta 92 more firepower while using quality factory components. This magazine holds an immense 20 rounds of 9mm ammunition. This allows you to do a lot more shooting and a lot less reloading. This magazine has many reports of being reliable, in part because of the extra strength springs used. Due to the extra strong springs used in this magazine, it can be difficult to load the last few rounds. Many have recommended the use of the UpLula to help ease the difficulty of loading those last few rounds.