Item #:
845737015718
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845737015718
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FN 545 MRD 45 ACP Full Size Pistol 10+1 4.1" Optic Ready

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The FN 545 MRD delivers professional-grade performance in 45 ACP with an optic-ready slide system that accepts popular red dot sights without adapter plates. This full-size striker-fired pistol combines FN's military heritage with modern features for competitive shooting and duty applications.

What Makes This Different

The 545 MRD features FN's Low-Profile Optic Mounting System (LPOMS) that positions red dots closer to the bore axis than traditional mounting solutions. The black PVD coating on the slide provides superior corrosion resistance compared to standard finishes. Deep slide serrations at front and rear ensure positive manipulation under stress or with wet hands.

Key Features

  • Optic-ready slide accepts Shield RMSc, Holosun 407K/507K, and similar micro red dots
  • Target crown 4.10" steel barrel with 1:16 twist rate for match-grade accuracy
  • Ambidextrous controls including slide stop and magazine release
  • Full-length Picatinny rail accommodates tactical lights and lasers
  • Polymer frame with aggressive texturing for secure grip retention
  • 10+1 capacity with flush-fit magazine in 45 ACP
  • Striker-fired action with consistent 5.5-6.5 lb trigger pull
Field testing demonstrates consistent 2.5-3 MOA accuracy at 25 yards with quality ammunition. The balanced weight distribution and low bore axis reduce muzzle flip during rapid fire sequences. Duty officers report reliable function through 5,000+ round test protocols without cleaning. The corrosion-resistant finish maintains appearance and function in harsh environments including saltwater exposure.

Technical Specs

  • Caliber: 45 ACP
  • Capacity: 10+1 rounds
  • Barrel Length: 4.10 inches with target crown
  • Overall Length: 7.4 inches
  • Height: 5.5 inches
  • Width: 1.35 inches
  • Weight: 27.2 oz unloaded
  • Frame Material: Glass-filled polymer
  • Slide Material: Steel with black PVD coating
  • Rail: Full-length Picatinny (MIL-STD-1913)
  • Sights: Three-dot tritium night sights
  • Country of Origin: USA
The FN 545 MRD represents a significant advancement in striker-fired 45 ACP pistols, combining proven reliability with modern optic integration. Professional shooters choose this platform for its consistent performance and extensive customization options.