High-Capacity Full-Size 9mms: CZ-USA’s Phantom Shows Up

If we were to list the reasons for the boom in popularity of the semiautomatic handgun, high capacity would be at the top. The highest-capacity pistols are typically chambered for 9mm because the cartridges are slender and you could pile a lot of them on top of each other. In this test we will shoot three 9mm pistols that subscribe heartily to the plan of carrying as many rounds as the frame will permit. With the rush on guns and ammo we actually had some difficulty putting this test together, but we found

Slender 9mm ammunition in a tall magazine is the way to achieve the highest capacity. Left to right are the 17-round G34, 19-round XDM, and 18-round CZ magazines. Each magazine featured a removable basepad capping a steel body. The Glock magazine was covered with a polymer shell.