Description
For FNX 45 owners who carry, compete, or shoot for recreation, adding magazine capacity without sacrificing reliability is a real advantage. This Magazine Base Pad Extension from Dallasm Shooters is built to do exactly that—giving you a meaningful boost in rounds while keeping your gun working the way it should.
This extension adds the equivalent of 2.5 rounds to your standard FNX 45 magazine. That extra half-round isn’t a gimmick. It provides just enough additional spring compression so you can seat a fully loaded magazine with the slide forward (in battery), something that’s often a problem with some other extensions. You get the extra capacity without the frustration of a magazine that won’t lock in place when you need it most.
Key details that matter for practical shooters, hunters, and those carrying for defense:
- Adds 2.5 rounds of capacity to your existing FNX 45 magazine—a real-world increase for the range or the field.
- Slide lock function is preserved. The extension is designed so the slide locks back on the last round, every time.
- Finger grooves on the front and perimeter of the base pad give you a solid grip for stripping a stuck magazine out of the gun—no more fumbling under pressure.
- Machined notches on the bottom face let you color-code your magazines with paint or marker for quick identification and tracking (black finish only).
- Machined from aluminum with two finish options: Black Type III Hardcoat Anodized or FDE Cerakote that matches the factory FDE frame closely—the color used is Magpul Flat Dark Earth (Cerakote H-267), commercially available for touch-ups if needed.
- Single set screw holds the extension snugly to the magazine and makes installation or removal simple.
- Includes an Extra Power Magazine Spring to ensure reliable slide lockback when the magazine is empty, even with the added weight of the extension.
- Easy to install with basic tools—no gunsmithing required.
Fitment: Designed specifically for the FNX 45. Works with standard capacity factory magazines. Not compatible with other models.
Price: $50 — a practical investment for anyone who wants more rounds in the gun without changing the grip size or adding bulk to the holster.
Note: This product is not available for sale in California, Oregon, Rhode Island, or Washington.









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