
Availability: In Stock
The Tyrant CNC Magazine Extension for Springfield Armory Echelon adds 5 rounds of 9mm capacity to your Echelon magazines without requiring any gunsmithing or field tools. Built from T6061 aerospace-grade aluminum and finished with hardcoat anodize, this base pad is engineered for shooters who want reliable extra ammunition capacity for carry, competition, or training without the hassle of complicated installation. Whether you're running a stock 15-round or 17-round Echelon magazine, this extension transforms it into a higher-capacity platform while maintaining the reliability your everyday carry or duty gun demands.
Installation is genuinely tool-free—you can swap or remove this extension by hand in seconds, no disassembly required. That matters on the clock or in the field. The proprietary 'NoBak' plunger technology locks the extension securely to the magazine body, even if you drop a fully loaded mag from height. The engineering here prioritizes durability and user experience: a reinforced 110% power spring (an additional coil over OEM) ensures the last round feeds and slide lock-back functions reliably every time. The solid top and bottom ledges give you a solid grip for quick mag changes and help you clear stuck magazines without fumbling.
The grey aluminum finish integrates cleanly with the Tyrant CNC product ecosystem for the Echelon, so you can build a cohesive platform without sacrificing form or function. This extension fits the 15-round and 17-round Echelon magazines; it is not compatible with the 10-round model or 20-round magazines (which use a different OEM base pad).
| Brand | Tyrant CNC |
| Platform | Springfield Armory Echelon |
| Capacity Addition | 5 rounds (9mm) |
| Material | T6061 aerospace-grade aluminum |
| Finish | Hardcoat anodize |
| Compatible Magazines | 15-round and 17-round Echelon magazines |
| Installation | Tool-free |
| Color | Grey |
The Tyrant CNC Magazine Extension fits the 15-round and 17-round Echelon magazines. It does not fit the 10-round magazine. Note that the 20-round Echelon magazine is a 17-round magazine with a 3-round OEM base pad already attached, so this extension is not compatible with it.
No. The extension installs and removes tool-free by hand. You can swap it out in seconds without disassembling the magazine.
Yes. The 'NoBak' plunger technology is designed to keep the extension securely attached even after drops from heights exceeding 10 feet with a fully loaded magazine.
The extension includes a 110% power spring (10% stronger than OEM, with an additional coil) engineered to ensure reliable feeding of the final round and maintain slide lock-back after the last round fires.

SKU: 167513447 • Width: 3.1in • Height: 1.3in • Depth: 10.7in • Weight: 0.135oz





Availability: In Stock
The Tyrant CNC Magazine Extension for Springfield Armory Echelon adds 5 rounds of 9mm capacity to your Echelon magazines without requiring any gunsmithing or field tools. Built from T6061 aerospace-grade aluminum and finished with hardcoat anodize, this base pad is engineered for shooters who want reliable extra ammunition capacity for carry, competition, or training without the hassle of complicated installation. Whether you're running a stock 15-round or 17-round Echelon magazine, this extension transforms it into a higher-capacity platform while maintaining the reliability your everyday carry or duty gun demands.
Installation is genuinely tool-free—you can swap or remove this extension by hand in seconds, no disassembly required. That matters on the clock or in the field. The proprietary 'NoBak' plunger technology locks the extension securely to the magazine body, even if you drop a fully loaded mag from height. The engineering here prioritizes durability and user experience: a reinforced 110% power spring (an additional coil over OEM) ensures the last round feeds and slide lock-back functions reliably every time. The solid top and bottom ledges give you a solid grip for quick mag changes and help you clear stuck magazines without fumbling.
The grey aluminum finish integrates cleanly with the Tyrant CNC product ecosystem for the Echelon, so you can build a cohesive platform without sacrificing form or function. This extension fits the 15-round and 17-round Echelon magazines; it is not compatible with the 10-round model or 20-round magazines (which use a different OEM base pad).
| Brand | Tyrant CNC |
| Platform | Springfield Armory Echelon |
| Capacity Addition | 5 rounds (9mm) |
| Material | T6061 aerospace-grade aluminum |
| Finish | Hardcoat anodize |
| Compatible Magazines | 15-round and 17-round Echelon magazines |
| Installation | Tool-free |
| Color | Grey |
The Tyrant CNC Magazine Extension fits the 15-round and 17-round Echelon magazines. It does not fit the 10-round magazine. Note that the 20-round Echelon magazine is a 17-round magazine with a 3-round OEM base pad already attached, so this extension is not compatible with it.
No. The extension installs and removes tool-free by hand. You can swap it out in seconds without disassembling the magazine.
Yes. The 'NoBak' plunger technology is designed to keep the extension securely attached even after drops from heights exceeding 10 feet with a fully loaded magazine.
The extension includes a 110% power spring (10% stronger than OEM, with an additional coil) engineered to ensure reliable feeding of the final round and maintain slide lock-back after the last round fires.
SKU: 167513447 • Width: 3.1in • Height: 1.3in • Depth: 10.7in • Weight: 0.135oz
