Tyrant CNC Magazine Extension Features The Tyrant CNC Magazine Extension adds three extra rounds of capacity to a Springfield Armory Hellcat or Hellcat Pro magazine giving the shooter more rounds on tap before a reload. Built from 7000 series aluminum and CNC machined for precision the extension is bead blasted and hardcoat anodized in Grey for a durable finish that resists wear from repeated use and holster carry. Because it reuses the factory OEM spring there is no need to source or fit a new spring during installation which keeps the whole process simple. This design philosophy means the extension functions seamlessly with the magazine it is built for without extra adjustment. Installation relies on Tyrant CNC s proprietary NoBak springer plunger technology which locks the extension firmly onto the magazine base without special tools and keeps it secured even if the magazine is dropped or thrown. That reliability matters for competitive shooters and concealed carriers alike where a magazine extension coming loose mid-stage or mid-draw is not an option. The extension does not fit the factory 10 round Hellcat or Hellcat Pro magazines so it is intended specifically for the higher capacity variants. For shooters looking to add capacity and a secure grip extension to their Hellcat platform this is a straightforward upgrade. Tyrant CNC Magazine Extension Specifications Manufacturer: Tyrant CNC Model: Magazine Extension for Hellcat Compatible Hosts: Springfield Armory Hellcat Hellcat Pro Color: Grey Material: Aircraft Aluminum Capacity Increase: +3 Rounds Available At: GrabAGun