# FN 545 MRD .45 ACP SAO - Optics Ready, Flat Dark Earth **Brand:** FN Herstal **Category:** Full Size Handguns **Caliber:** .45 ACP ## Specifications - **Caliber:** .45 ACP - **Barrel Length:** 4.1" - **Capacity:** 10 rounds - **Finish:** Blued - **Weight:** 30 oz - **Overall Length:** 7.7" - **UPC:** 845737015732 - **SKU:** UCEt9uKOa ## Description The FN 545 MRD is a single-action-only .45 ACP semi-automatic pistol with a 4.1-inch hammer-forged barrel, optic-ready slide, and Flat Dark Earth textured polymer grip. It ships with 10+1 capacity and no manual safety. ### Key Specifications - **Brand**: FN - **Model Name**: 545 MRD - **Caliber**: .45 ACP - **Action Type**: Single Action Only (SAO) - **Capacity**: 10+1 rounds - **Barrel Length**: 4.1 inches - **Overall Length**: 7.7 inches - **Weight**: 30 oz. - **Finish Color**: Flat Dark Earth - **Sights**: Co-Witness Height Sights (Fixed) - **Grip Material**: FDE Textured Polymer - **Trigger Type**: Standard - **Safety Features**: None ### Detailed Features The optic-ready slide has a direct-mount cut for micro red dot sights, which co-witness with the fixed steel sights. Controls are ambidextrous for left- or right-handed shooters. The FDE textured polymer grip is lightweight and provides good traction in most conditions. The hammer-forged barrel has a target crown. No manual safety. The pistol relies on the SAO trigger geometry. ### Usage The FN 545 MRD is positioned as a duty/defense pistol in .45 ACP. The optic-ready slide makes it a practical platform for shooters who want to run a red dot on a full-power cartridge. The FDE finish suits those who prefer a tactical appearance or coordinate with FDE accessories. At 30 oz it's manageable for the caliber. ## Frequently Asked Questions **Q: What caliber is the FN 545 MRD?** A: The FN 545 MRD is chambered in .45 ACP. **Q: Who makes the FN 545 MRD?** A: The FN 545 MRD is made by FN Herstal. **Q: What is the barrel length of the FN 545 MRD?** A: It has a 4.1-inch hammer-forged barrel. **Q: How many rounds does the FN 545 MRD hold?** A: It has a 10+1 capacity. **Q: What type of firearm is the FN 545 MRD?** A: It is a full-size, single-action-only semi-automatic pistol with a Flat Dark Earth textured polymer grip. **Q: Is the FN 545 MRD optic-ready?** A: Yes. The slide has a direct-mount cut for micro red dot sights, and the fixed co-witness sights align with a mounted optic. **Q: Where can I buy the FN 545 MRD?** A: Compare current vendor offers on this page. ## What Reviewers Say *Quoted verbatim from YouTube reviews. Each link opens the video at the moment quoted.* > You got to love a a firearm that is not too big really uh to handle. > > — [hickok45](https://www.youtube.com/watch?v=Y2Zaibi77kk&t=98s) > As far as negatives though, it I guess again I'd like more friction on the grip. > > — [hickok45](https://www.youtube.com/watch?v=Y2Zaibi77kk&t=425s) > You've seen a lot of movies, you're expecting not even to hear it, like you turn the sound off on your your computer or TV or something. > > — [hickok45](https://www.youtube.com/watch?v=Y2Zaibi77kk&t=755s) > Yeah, I've noticed I I sense a little bit of different. > > — [hickok45](https://www.youtube.com/watch?v=Y2Zaibi77kk&t=347s) > FN has a good reputation. The 509's I think has an excellent reputation. > > — [hickok45](https://www.youtube.com/watch?v=Y2Zaibi77kk&t=1104s) ## What Customers Say *AI-generated insights from customer reviews* The FN 545 MRD in FDE draws consistent praise for its build quality and reliability. FN's manufacturing reputation carries real weight with buyers, and the 545 generally lives up to it in range reports. The pistol cycles reliably with standard .45 ACP loads, and accuracy is solid. The optic-ready capability is the most frequently cited selling point. Shooters who want to mount a red dot on a .45 platform find the co-witness height sights and direct-mount optic cut a clean implementation. Ergonomics are well-received. The grip fits comfortably across various hand sizes, and the ambidextrous controls are appreciated by left-handed shooters and those who train with both hands. Adjustable backstraps accommodate different grip preferences. The FDE finish splits opinion along aesthetic lines. Some buyers choose it specifically for the tactical look; others prefer the standard black finish. Functionally it performs the same. No manual safety is either a feature or a concern depending on the shooter's training and preference. Some users coming from manual-safety platforms take time to adjust. Pricing is competitive within the FN lineup but draws the usual comparison-to-competitors discussion. ## Pricing **1 offers available** | Vendor | Price | |--------|-------| | Primaryarms Com | $819.00 | ## Similar Products - [FN 545 MRD .45 ACP SAO Handgun - Precision & Power](https://gunsnation.com/p/fn-545-mrd-45-acp-sao-handgun-precision-power/UCEt9uKOM) - [FN 545 FDE .45 ACP Optics Ready Pistol - 15+1, Ambidextrous](https://gunsnation.com/p/fn-545-fde-45-acp-optics-ready-pistol-15-1-ambidextrous/UCEt9uKOT) - [FN 545 MRD .45 ACP Pistol, Optics-Ready, 15rd Capacity](https://gunsnation.com/p/fn-545-mrd-45-acp-pistol-optics-ready-15rd-capacity/UCEt9uL3j) - [FN 545 MRD Optic-Ready .45 ACP Pistol - Matte Black, 15+1 Capacity](https://gunsnation.com/p/fn-545-mrd-optic-ready-45-acp-pistol-matte-black-15-1-capacity/UCEt9uKO5) - [FN 545 MRD .45 ACP Pistol w/Holosun Red Dot - FDE Finish](https://gunsnation.com/p/fn-545-mrd-45-acp-pistol-w-holosun-red-dot-fde-finish/UCEt9uL46) - [FN America 545 MRD .45 ACP 4.4in Flat Dark Earth](https://gunsnation.com/p/fn-america-545-mrd-45-acp-4-4in-flat-dark-earth/UCEt9uLHi) --- *Data from [GunsNation](https://gunsnation.com)*