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When you own an FNX-45, there's really no good reason to trust anything other than a factory mag. This is the real deal from FN America, part number 66322-1, built in the same facility using the same manufacturing process and materials as the magazines that come in the box with the gun. That means the fitment is exactly right, the feed angle is dialed in, and you're not gambling on whether some third-party mag is going to play nice with your pistol.
The body is stainless steel with a tumble-polished dark finish that gives it a clean black appearance and holds up well in wet or dirty conditions. Inside, a high-tensile steel spring keeps consistent tension on the rounds, while the controlled-tilt polymer follower guides each cartridge into the feed ramp smoothly. Numbered witness holes run along the rear spine so you can get a quick round count at a glance without having to drop the mag. The flush-fit black polymer baseplate sits right at the bottom of the mag well with no protrusion, which keeps things snag-free and maintains that clean look on the pistol.
This 10-round version is the right call for FNX-45 owners who need a capacity-restricted spare for range use or storage. The FNX-45 is a full-size DA/SA pistol with a serious pedigree, having been developed from the FNP-45 that FN submitted to the U.S. Joint Combat Pistol Program, and the magazines are built to match that level of seriousness. If you're rotating mags at the range to reduce wear on your carry mag, or just want an extra in the bag, this is the one to grab.
Yes, this magazine is compatible with both the standard FNX-45 and the FNX-45 Tactical. Both pistols share the same magazine well design and feed geometry. The 10-round version is functionally identical to the 15-round mag in construction, just with a shorter body and lower capacity.
FN themselves have advised against using FNP-45 magazines in the FNX-45 for extended use, even if they happen to fit. The FNX-45 magazine was redesigned with a different feed geometry to improve reliability with a wider range of ammunition. Sticking with the correct FNX-specific magazine like this one is the right move for consistent function.
This is a genuine OEM magazine from FN America, part number 66322-1. It is manufactured to the same specs and tolerances as the magazines that ship with the FNX-45 pistol from the factory. It is not a ProMag or other aftermarket replacement.
Yes, numbered witness holes are drilled along the rear spine of the magazine body. You can check your round count at a glance without dropping the mag, which is a handy feature during range sessions or training.
The black polymer baseplate is a flush-fit design, meaning it sits flat against the bottom of the mag well with no extension. This keeps the overall profile clean and snag-free, making it a good option if you want your spare mags to carry and store neatly.
The polymer baseplate is removable, which allows you to field strip the magazine for cleaning and maintenance without needing any special tools. Regular cleaning of your magazines, including the follower, spring, and body, helps keep feeding consistent over the long haul.
| UPC | 845737002558 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 66322-1 |
| Brand Fit | FN |
| Caliber/Gauge | .45 ACP |
| Capacity | 10 |
| Color | Black |
| Length | 9 |
| Model | |
| Model Fit | FNX |
| Package Height | 1.4 |
| Package Width | 2.8 |
| Product Type | Accessory-Magazines |
| Shipping Weight | 0.25 |
| Quantity | 1 |
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