Tyrant CNC Mag Extension Features The Tyrant CNC Mag Extension is machined from 6061 aerospace grade aluminum and adds 3 rounds of 9mm capacity to a Sig Sauer P365 X-Macro magazine taking total capacity to 20+1. That extra capacity can matter in a defensive encounter giving the shooter more rounds on hand without carrying an additional spare magazine. The extension incorporates Tyrant CNC s innovative NoBak retention spring technology designed to keep the base plate securely attached under recoil while still allowing tool-less assembly and disassembly for cleaning or maintenance. This combination of added capacity and simple maintenance makes the extension practical for daily carry use. Dimensions of the extension are specifically designed to match the contours of the Sig P365 frame minimizing the chances that the extended magazine will print through clothing during concealed carry. At just 1.55 inches long and a fraction of an ounce in added weight the extension keeps the pistol s footprint close to its original form while delivering a real capacity gain. Finished in a matte gold it adds a distinctive look to the pistol alongside its functional benefit. Concealed carriers running the P365 X-Macro will find the Tyrant CNC Mag Extension a straightforward way to boost magazine capacity without changing how the pistol carries. Tyrant CNC Mag Extension Specifications Manufacturer: Tyrant CNC Model: Mag Extension Caliber: 9mm Compatible Hosts: Sig Sauer P365 X-Macro Color: Gold Material: Aluminum Finish: Matte Capacity Increase: +3 Rounds Length: 1.55 Weight: 0.30 oz Available At: GrabAGun