Glock Extended Mags
One of the beautiful things about Glock’s G-series handguns is that factory replacement magazines are both affordable and readily available. Standard-sized factory mags can be had for as low as $25. For those who like to play around with a larger capacity, there are always extended capacity mags.
Extended magazines, extra-large capacity box devices that protrude below the normal grip of the pistol, look funny but offer a boost of firepower at your fingertips. In some cases, these magazines can almost double the capacity of the pistol. These extra rounds are imminently faster into the fight than any reload and allow the user to engage more targets before having to switch magazines. This can come in handy at the range or when in a combat situation.
Read the rest in my column at the Glock Forum