Glock factory magazine have a reputation for being as stone cold, boringly reliable as the pistols that they feed. These magazines are made to exacting standard and are expected to perform every time. The Glock magazines are as innovative as the Glock pistol are, themselves. The Glock factory magazines have a hardened steel inner liner that gives the Glock mags a stout frame. That metal liner is then covered in a high-tech polymer coating that provides enhanced corrosion resistance and helps that magazine retain it’s shape if subjected to impact.
Grabbing a few extra magazines is always a good choice. You can leave a few in your range bag, or in your car, that you know that you are never too far away from a spare.
Don’t take chances with other magazines; stick with the Glock factory magazines. They have a proven track record and are known to outshine the competition.