Tyrant CNC Magazine Extension Features The Tyrant CNC Magazine Extension adds 3 additional rounds of 9mm capacity to a Springfield Hellcat or Hellcat Pro magazine giving the shooter more rounds on tap before a reload is needed. It is machined from 7000 series aluminum for strength without excess weight then finished with a bead blast and hardcoat anodized gold finish for a durable scratch-resistant exterior. The extension uses the magazine s existing OEM spring rather than requiring a replacement which keeps the installation simple and avoids introducing reliability concerns from a non-factory spring. Fitment is specific to the Hellcat and Hellcat Pro magazines and it is not compatible with the firearm s 10-round magazines. Installation relies on Tyrant CNC s NoBak springer plunger technology which locks the extension firmly onto the magazine baseplate without requiring any special tools or gunsmithing. That same technology keeps the extension securely attached even if the magazine is dropped thrown or subjected to hard use in training or competition. The sleek profile blends in with the factory look of the Hellcat or Hellcat Pro rather than looking like a bolted-on accessory. For competitive shooters hunters or concealed carriers who want more rounds without sacrificing the pistol s factory feel this gold Tyrant CNC extension is a practical upgrade. Tyrant CNC Magazine Extension Specifications Manufacturer: Tyrant CNC Model: Magazine Extension Compatible Hosts: Springfield Hellcat Hellcat Pro Color: Gold Material: Aluminum Capacity Increase: +3 Rounds Available At: GrabAGun