Description
The FN 545 MRD Comp 45 ACP 10rd Black is a striker-fired, semi-automatic pistol built to deliver controlled recoil and duty-ready capacity in a package that conceals and carries without compromise. Chambered in .45 ACP, it ships with two 10-round magazines and features an optics-ready slide with multiple MRD mounting plates for direct-mount red dot compatibility. The polymer frame and interchangeable backstraps provide an ergonomic fit that works for daily carry or extended range sessions. With a weight around 30 ounces, it balances shootability with portability for the shooter who expects more from a .45.
Specifications
| Manufacturer | FN America |
|---|---|
| Model | 545 MRD Comp |
| Caliber | .45 ACP |
| Capacity | 10 rounds (two magazines included) |
| Frame Material | Polymer |
| Slide Finish | Black |
| Weight | ~30 ounces (per manufacturer specs) |
| Condition | New |
Key Features
- Optics-Ready Slide with Multiple MRD Plates — Direct-mount compatibility means you can run your preferred red dot without aftermarket milling, saving time and money while improving target acquisition speed.
- Interchangeable Backstraps — Adjust the grip circumference to match your hand size, which matters for consistent recoil control and a natural point of aim.
- Two 10-Round Magazines — You get a spare right out of the box, so you can load defensive ammo and range ammo separately or carry a backup without an extra purchase.
- Polymer Frame with Textured Grip — The aggressive texture keeps the pistol locked in your hand under recoil, even with sweaty palms or in wet conditions.
- Striker-Fired Trigger System — Consistent pull weight and short reset make follow-up shots faster and more predictable, especially under stress.
Who It’s For
This pistol is built for the shooter who wants a .45 ACP that runs like a modern duty gun. It fits the training student who needs a reliable platform for defensive drills, the new shooter who wants manageable recoil without stepping down to 9mm, and the concealed carrier who values capacity and optics readiness in a proven caliber.
Pros and Cons
- Pros: Optics-ready from the factory, two magazines included, ergonomic grip options, manageable recoil for .45 ACP, reliable FN build quality.
- Cons: 10-round capacity is standard for compliance states but lower than some competitors in free states; polymer frame may feel less premium than steel to some shooters.
Comparison: FN 545 MRD Comp vs. Zev Technologies OZ9 vs. Agency Arms G17
| Feature | FN 545 MRD Comp | Zev Technologies OZ9 | Agency Arms G17 |
|---|---|---|---|
| Caliber | .45 ACP | 9mm | 9mm |
| Capacity | 10 rounds | 17 rounds | 17 rounds |
| Optics Ready | Yes (multiple plates) | Yes | Yes |
| Frame Material | Polymer | Polymer/aluminum chassis | Polymer |
| Weight | ~30 oz | ~26 oz | ~24 oz |
| Price | $949 | $1,200+ | $1,100+ |
The FN 545 MRD Comp offers a larger caliber and a lower price point than both the Zev OZ9 and Agency Arms G17, but with reduced capacity and a heavier profile. It’s a better choice if you prioritize .45 ACP stopping power and factory optics readiness over magazine capacity or weight savings.
FAQ
Is the FN 545 MRD Comp optic-ready out of the box?
Yes. The slide is pre-milled with multiple MRD mounting plates included, so you can direct-mount most popular red dot sights without additional machining.
Does the FN 545 MRD Comp come with extra backstraps?
Yes. Interchangeable backstraps are included to adjust grip size for different hand shapes and shooting preferences.
What is the magazine capacity for the FN 545 MRD Comp?
It ships with two 10-round magazines. This capacity is standard for the model and complies with most state restrictions.
Is the FN 545 MRD Comp suitable for concealed carry?
Yes. At approximately 30 ounces and with a polymer frame, it balances shootability with a weight that works for IWB or OWB carry with a proper holster.
According to industry data, .45 ACP remains one of the top three handgun calibers for defensive use in the U.S., with over 20% of handgun owners choosing it for its proven terminal performance.
Last updated: April 2026
Trust and Logistics
- ✅ Nationwide delivery to all 50 states
- ✅ Ships within 1-2 business days
- ✅ 30-day return policy
- ✅ Secure checkout with encryption
Explore more options in our Semi Auto Handguns or check out .45 ACP Pistols and Optics-Ready Handguns for similar models.
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