# FN America FNX-45 Tactical .45 ACP Night Sight Pistol

**Brand:** FN Herstal
**Category:** Full Size Handguns
**Caliber:** .45 ACP

## Specifications

- **Caliber:** .45 ACP
- **Barrel Length:** 4.5"
- **Capacity:** 15 rounds
- **Finish:** Black
- **Weight:** 33.2 oz
- **Overall Length:** 7.4"
- **UPC:** 845737003241
- **SKU:** UCEt9uH97

## Description

The FN America FNX-45 is a full-frame .45 ACP pistol built on a polymer frame with a cold hammer-forged stainless steel barrel. It runs a single/double action trigger with a manual safety and decocker. The 4.5-inch barrel puts total length at 7.4 inches and height at 6.3 inches. At 2.1 lbs (33.2 oz), it carries the weight you'd expect from a full-frame .45. Standard capacity is 15 rounds, and the gun ships with two magazines. Fixed night sights, one-dot front and two-dot rear, handle low-light identification without additional accessories.

### Key Specifications
- **Manufacturer Name:** FN America
- **Model:** FNX
- **Series:** 45
- **Caliber:** .45 ACP
- **Barrel Length:** 4.5 inches
- **Total Length:** 7.4 inches
- **Overall Height:** 6.3 inches
- **Weight:** 2.1 pounds (33.2 oz)
- **Capacity Standard:** 15 rounds (includes two magazines)
- **Action Type:** Single/Double Action
- **Frame Material:** Polymer
- **Slide Material:** Stainless Steel
- **Grip Type:** Black Interchangeable Backstrap
- **Safety Features:** Manual safety with decocker

### Detailed Features

The polymer frame keeps the weight reasonable for a .45 ACP full-frame pistol. The cold hammer-forged barrel adds durability and consistency over a long service life. Interchangeable backstraps let shooters fit the grip to their hand size rather than adapting to a fixed grip.

The night sights provide a low-light aiming solution without requiring a weapon light or separate purchase. The decocker lets the shooter lower the hammer safely without a trigger press, relevant for DA/SA users who stage the gun hammer-down.

### Target Audience

The FNX-45 is aimed at law enforcement, duty carry, and home defense users who want 15-round .45 ACP capacity in a controllable package. Experienced shooters will work the DA/SA action naturally; newer shooters will need range time to get consistent with the transition between DA and SA pulls.

### Usage Scenarios

1. Self-defense: 15-round capacity and a powerful caliber cover most situations.
2. Home defense: the night sights and decocker are both useful for a staged home-defense setup.
3. Sport shooting: the accuracy and capacity work well at the range and in competition.
4. Law enforcement: the ergonomics and reliability hold up under operational demands.

## What Customers Say

*AI-generated insights from customer reviews*

Discussion of the FNX-45 Tactical in .45 ACP with night sights tends to be positive overall, with some genuine trade-offs noted.

Build quality and reliability draw consistent praise. Owners describe the construction as solid, with the stainless/polymer combination holding up through heavy use. Ergonomics are a specific selling point. The grip fits well across different hand sizes, which owners link to better accuracy and less fatigue on longer sessions. The night sights get good feedback from users who prioritize home defense and low-light scenarios, with many citing this as a key reason they chose the Tactical over other FNX variants.

The 15-round magazine capacity in .45 ACP is a frequent highlight. Most competitor .45 pistols cap out lower, so the capacity advantage matters to shooters who don't want to reload often. Recoil management is also noted positively. The weight and design keep muzzle rise in check, which helps with rapid fire control. The threaded barrel and suppressor compatibility come up often among buyers who run or plan to run a can.

Weight and size are the most consistent downsides. The gun is heavy for all-day carry, and the full-frame dimensions make concealment difficult for average-framed carriers. Price is seen as high by some when compared to competitors, though most owners feel the quality justifies it. Aftermarket accessory options are available but narrow compared to platforms like the Glock 21.

## Pricing

**1 offers available**

| Vendor | Price |
|--------|-------|
| Gunbuyer Com | $649.00 |

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*Data from [GunsNation](https://gunsnation.com)*