Pro Mag Industries Drum Magazine for Taurus GX4 Features The ProMag Drum Magazine is built to fit the Taurus GX4 9mm pistol and holds 30 rounds a substantial increase over the GX4 s factory flush fit magazine capacity. The magazine body is molded from a proprietary DuPont Zytel based polymer a material known for its strength light weight and resistance to the stress of repeated loading cycles. A blue steel upper magazine tower reinforces the critical feed lip area helping the magazine maintain reliable feeding geometry over thousands of cycles. The black polymer finish keeps the magazine s appearance consistent with the GX4 s factory finish for a clean uniform look when inserted. Inside the magazine an injection molded follower is paired with a magazine spring formed from heat treated stainless steel a combination designed to deliver consistent spring tension and reliable round presentation from full to empty. This attention to internal components matters most in a high capacity drum design where the spring has to manage significantly more rounds than a standard flush magazine. Manufactured in the USA the ProMag Drum Magazine gives GX4 owners a straightforward way to extend their pistol s capacity for range sessions competition or home defense without switching firearms. This drum magazine is a practical upgrade for Taurus GX4 shooters looking for more rounds between reloads. Pro Mag Industries Drum Magazine for Taurus GX4 Specifications Manufacturer: Pro Mag Industries Model: Drum Magazine for Taurus GX4 Compatible Hosts: Taurus GX4 Caliber: 9mm Capacity: 30 Rounds Color: Black Material: Polymer Available At: GrabAGun