Tyrant Cnc Tdp320Magexgrey Mag Ext Sig P320 5Rd Grey Alumn

The Tyrant CNC TDP320 magazine extension for the SIG P320 brings practical innovation to one of the most popular tactical 9mm platforms. If you're running a P320 for duty, competition, or defensive carry, this grey aluminum extension adds 5 rounds of magazine capacity in a tool-free installation that takes about 10 seconds—no disassembly, no gunsmithing needed. Tyrant's proprietary "NoBak" retention plunger system lets the extension slide straight onto your mag base pad without any backing plate removal, making it genuinely the fastest install in its class.

Built from 6000-series aircraft-grade aluminum and CNC machined to spec, this extension delivers the heft you need for positive magazine drops under stress. The knurled grip surface gives you positive purchase during reloads, even when your hands are wet, cold, or working fast. It's engineered to work with both SIG's 15-round and 17-round P320 magazines on compact and full-size frames respectively, and it plays well with common aftermarket frames—though some (like Agency Arms and X-Carrillo) may require minor modification. A new power spring is included, so you're ready to load and run out of the box.

This isn't a magwell-dependent solution, so it works on standard P320s without specialized frames. That broad compatibility makes it a no-regrets upgrade for the shooter who wants more ammunition on board without a complete platform redesign. Whether you're training hard, competing in USPSA, or building a defensive rig, this extension solves a real problem: more rounds, faster reloads, zero fuss.

Key Features

• Tool-free, 10-second installation using NoBak retention technology
• Adds 5 rounds of 9mm capacity to SIG P320 magazines
• CNC-machined 6000-series aluminum construction for durability and mag drop reliability
• Knurled surface for secure grip during speed reloads
• Compatible with 15-round and 17-round P320 magazines
• Works on compact and full-size P320 frames without magwell modification
• Includes new power spring with purchase
• Easily removable—press the plunger to slide base pad off

Specifications

Frequently Asked Questions

Will this mag extension fit my P320 frame?

The Tyrant CNC extension is designed for standard SIG P320 compact and full-size frames using 15-round and 17-round magazines respectively. It also fits several popular aftermarket frames including X5 Legion, iCarus, and Wilson Combat platforms—though Wilson Combat and Agency Arms frames may require minor modification. It does not fit 10, 12, or 21-round SIG P320 magazines.

How fast is the installation really?

The NoBak retention plunger design means the extension slides directly onto your magazine base pad in about 10 seconds with no tools and no disassembly. If you need to remove it, simply press the plunger down and slide the base pad off.

What's included with the extension?

Each purchase includes the aluminum extension and a new power spring, so you have everything needed to install and run the extension right away.

Will this work on my AXG or X5 Legion frame?

The extension is compatible with AXG and X5 Legion frames without their respective magwell attachments. If your frame uses a magwell, you may need to remove it for the extension to fit properly.