Tyrant Cnc Tdp365Magexgrey P365-Xmacro Magazine Extension 9Mm Fits Sig P365 Gray 6061 Aluminum

The Tyrant CNC P365-XMacro magazine extension is a purpose-built capacity upgrade for shooters running Sig Sauer P365 XMacro platforms who want more rounds on tap without sacrificing concealability. Machined from 6061 aerospace-grade aluminum and finished in gray, this +3 extension bolts onto your 17-round Macro magazine to bring total capacity to 20 rounds of 9mm—a meaningful bump for range days or defensive carry without making a bulkier gun.

What sets the Tyrant CNC design apart is the NoBak retention technology: a tool-free, spring-based system that lets you snap the extension on or off in seconds with no gunsmithing required. Unlike some mag extensions that demand power springs or fiddle-prone assembly, this one slides straight onto your magazine base and locks in place instantly. The engineering is clean—no tools, no drama, and no need for a separate power spring to keep things reliable.

The dimensions are deliberately compact to minimize printing when you're carrying inside the waistband. That said, this extension is engineered specifically for the P365 XMacro's 17-round magazine; it won't fit earlier, lower-capacity P365 models with folding flanges. Check your magazine type before ordering. California-compliant versions are compatible. Note: depending on magazine production date, your OEM SIG magazine may have a shorter spring; Tyrant CNC flagged that some earlier springs might not lock the slide back on the final round when paired with their or other brands' extension base pads—something to test at the range if you have an older magazine.

Key Features

• Adds 3 rounds of 9mm capacity to P365 XMacro magazines
• CNC-machined 6061 aluminum construction in gray finish
• NoBak retention technology for tool-free installation and removal
• No power spring required for reliable function
• Fits P365 XMacro 17-round magazines and most aftermarket magwells
• Compact profile designed to minimize printing during carry
• California-compliant magazines compatible

Specifications

Frequently Asked Questions

Will this magazine extension fit my Sig P365?

This extension is designed specifically for the P365 XMacro's 17-round magazine. It will not fit earlier P365 models with lower-capacity magazines that have folding flanges. Confirm your magazine type before purchase.

How do I install the Tyrant CNC P365 XMacro magazine extension?

Installation is tool-free and takes about 10 seconds. The NoBak retention spring technology lets you slide the extension onto the magazine base until it locks. To remove, simply push down the plunger and slide the base plate off—no tools required.

Does this extension require a power spring to function?

No. The Tyrant CNC extension is engineered to function reliably without a power spring. However, note that depending on your OEM magazine's production date, an older, shorter spring might not lock the slide back on the final round when paired with this or other brands' extension base pads—test this at the range with your specific magazine.

Will the extended magazine print when I carry?

The extension is designed with compact dimensions to minimize printing during inside-the-waistband carry. However, the actual visibility will depend on your holster, clothing, and body type—always test your complete carry setup.