Shockwave is a tough, 3D-printed magazine extension that adds extra capacity to your pistol. It fits perfectly on Taurus G3 Mec-Gar 18-round magazines. It also drops right onto Walther PDP factory magazines (18-round models), extending the magazine without changing the gun’s ergonomics. Simple drop-in install. Durable 3D-printed construction. Upgrade your Taurus G3 Mec-Gar or Walther PDP magazines with the Shockwave.