
The FN 545 MRD is a full-size .45 ACP pistol designed for dependable accuracy, controllable recoil, and fast optic installation. Its 4.1-inch cold hammer-forged barrel features a target crown, polished feed ramp, and polished chamber for consistent feeding and long-term performance. The enhanced textured polymer grip frame and interchangeable backstraps provide a secure, customizable hold, while the precision-tuned striker-fired trigger delivers a clean break at approximately 6 pounds. The slide accepts most compatible red dot sights without gunsmithing, and driftable steel sights are designed to co-witness with many MRD optics. Fully ambidextrous slide stop and magazine controls add practical flexibility for a wide range of shooters.
Key features
- 15+1 capacity in .45 ACP provides substantial onboard firepower
- MRD optics-ready slide allows compatible red dot sights to be mounted without gunsmithing
- Cold hammer-forged 4.1-inch barrel with target crown supports enduring accuracy
- Textured polymer frame and interchangeable backstraps improve grip control and fit
- Precision-tuned striker-fired trigger provides a crisp break at approximately 6 pounds
- Driftable steel sights support reliable aiming and co-witnessing with many compatible optics
The FN 545 MRD combines .45 ACP performance, adaptable ergonomics, and factory optics compatibility in a durable full-size pistol.



