Description
The Tyrant CNC P365 X-Macro magazine extension transforms your factory 17-round magazine into a 20-round capacity setup without adding any complexity. Built from aerospace-grade 6061 aluminum and finished in matte gold, this extension pairs durability with the aesthetics that make your P365 setup look sharp. The gold finish gives the extension a distinctive look while maintaining the same precision engineering you'd expect from CNC machining.
How the NoBak Retention Technology Works
At the heart of this extension is Tyrant's NoBak retention plunger system. Instead of screws or complicated assembly processes, the extension slides onto the magazine base in roughly 10 seconds with nothing but your hands. To remove it, you just push the plunger and slide it off. The retention spring ensures your magazine stays secure during carry, drops, or range use without any worry about it coming loose. No power spring means no over-engineering—it's designed to function reliably without adding unnecessary complexity.
Profile and Carry Considerations
The extension is sized to match the P365 X-Macro frame dimensions, which keeps the footprint compact and reduces printing when you're carrying concealed. This matters if you're doing IWB carry or need to keep a low profile. The gold finish pairs well with both the pistol itself and other Tyrant CNC components, so if you're building out a cohesive look across your upgrades, this works seamlessly.
Installation and Included Components
Each extension comes with a replacement power spring to ensure consistent magazine function at full capacity. Installation requires no tools and takes under a minute. Removal is equally quick if you need to swap back to factory magazine heights or perform maintenance. The design keeps things simple without sacrificing reliability.
Key Specifications
- Manufacturer: Tyrant CNC
- Manufacturer Part Number: TD-P365MAGEX-GOLD
- UPC: 764046030123
- Caliber: 9mm
- Firearm Model: Sig Sauer P365 X-Macro
- Magazine Compatibility: P365 X-Macro 17-round magazine only
- Capacity Increase: +3 rounds (brings total to 20+1)
- Material: 6061 aerospace-grade aluminum
- Finish: Matte gold anodized
- Retention Technology: NoBak retention plunger system
- Installation: Tool-free, approximately 10 seconds
- Weight: 0.3 oz
- Dimensions: 1.55" L x 1.09" W x 0.9" H
What’s Included
- Tyrant CNC P365 X-Macro magazine extension in gold
- Replacement power spring for reliable feeding
Frequently Asked Questions
Does this extension work with all P365 models?
No, this extension is specifically designed for the P365 X-Macro 17-round magazine only. Earlier P365 and P365 XL models have different magazine geometry and won't accept this extension. If your magazine is a 17-round model, you're good to go, but lower-capacity magazines with flanges that fold inward won't be compatible.
Will the slide lock back after the last round with this extension?
The Tyrant extension includes a power spring to ensure reliable feeding, but occasionally P365 magazines manufactured on earlier production dates came with weaker OEM springs. If your magazine is from an earlier batch, the included power spring should help, but if the original spring is too weak, you may want to contact the manufacturer or consider a fresh spring. This is a known quirk with some production runs, not a defect of the extension itself.
How do I remove the extension for cleaning or maintenance?
Simply push down the NoBak plunger at the bottom of the extension and slide the baseplate off. The entire removal process takes just a few seconds and requires no tools. This makes it easy to access the magazine internals for cleaning or spring replacement whenever needed.
Will this extension print under my clothing during concealed carry?
The extension is designed to match the P365 X-Macro frame profile to minimize printing, but results depend on your carry method and clothing. Since the X-Macro platform is already compact, the low-profile design of this extension should keep printing minimal during IWB carry with most holster setups.





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