The FN 509 MRD LE Gen 3 Night Sight 9mm Pistol, Optic-Ready, Black Finish is a 9mm full size handguns from FN Herstal. It is available from 1 vendor at $659.49.
Name: FN 509 MRD LE Gen 3 Night Sight 9mm Pistol, Optic-Ready, Black Finish
Brand: FN Herstal
Category: Full Size Handguns
Caliber: 9mm
Barrel Length: 4"
Capacity: 17 rounds
UPC: 845737014681
SKU: UCEt9uK7d
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The FN 509 MRD LE is a striker-fired 9mm Luger pistol with a 4.0-inch cold hammer forged barrel, 17+1 capacity, and a factory optic cut slide. It weighs 27 oz, has an overall length of 7.40 inches, and ships with 3-dot Tritium night sights.
The FN 509 MRD LE is a striker-fired 9mm Luger pistol with a 4.0-inch cold hammer forged barrel, 17+1 capacity, and a factory optic cut slide. It weighs 27 oz, has an overall length of 7.40 inches, and ships with 3-dot Tritium night sights.
The cold hammer forged barrel is the same production method FN uses on its military contracts; it contributes to accuracy and barrel life. The optic cut accepts a range of common red dot footprints without additional milling. Tritium night sights are standard, not an upgrade, which is meaningful for a duty or defensive pistol. The textured polymer grip handles well in wet conditions. Aggressive serrations on the slide make manipulations positive under pressure.
The 509 MRD LE was spec'd with law enforcement use in mind: the 17+1 capacity, Tritium sights, and pre-cut optic mount address common duty requirements without needing aftermarket work. At 27 oz with a 4.0-inch barrel it's in the full-size service pistol category. The trigger pull range of 5.5 to 7.7 lbs is consistent with striker-fired duty standards.
Owners and users of the FN 509 MRD LE are generally positive about its reliability. It cycles cleanly across different ammunition types, and the consistent trigger pull gets good marks for building confidence at the range.
Ergonomics come up frequently. The grip is comfortable for most hand sizes and the adjustable backstraps let shooters dial in the fit. The optic-ready slide is a genuine selling point for users who want to run a red dot without paying for a gunsmith cut.
The Tritium night sights are called out specifically as a worthwhile standard feature for home defense and low-light range sessions.
Trigger feel is where opinions split. Some shooters find the break and reset crisp and predictable; others feel it could be crisper compared to aftermarket-tuned competitors at a similar price point. That said, the overall value assessment in buyer communities tends to land positive given the FN-level build quality and the included night sights and optic cut.
AI-generated insights derived from customer reviews and discussions on popular gun-enthusiast forums.
The FN 509 MRD LE is a striker-fired 9mm Luger pistol with a 4.0-inch cold hammer forged barrel, 17+1 capacity, and a factory optic cut slide. It weighs 27 oz, has an overall length of 7.40 inches, and ships with 3-dot Tritium night sights.
The cold hammer forged barrel is the same production method FN uses on its military contracts; it contributes to accuracy and barrel life. The optic cut accepts a range of common red dot footprints without additional milling. Tritium night sights are standard, not an upgrade, which is meaningful for a duty or defensive pistol. The textured polymer grip handles well in wet conditions. Aggressive serrations on the slide make manipulations positive under pressure.
The 509 MRD LE was spec'd with law enforcement use in mind: the 17+1 capacity, Tritium sights, and pre-cut optic mount address common duty requirements without needing aftermarket work. At 27 oz with a 4.0-inch barrel it's in the full-size service pistol category. The trigger pull range of 5.5 to 7.7 lbs is consistent with striker-fired duty standards.
| Caliber | 9mm |
| Model | 509 MRD LE |
| Capacity | 17 rounds |
| Magazines included | 0 |
| Barrel length | 4" |
| Weight | 26.9 oz |
| Action | Striker |
| Finish | Matte Black |
| Color | Black |
| Sights | 3-Dot Tritium Night |
| Safety | Trigger |
Quoted verbatim from YouTube reviews. Each link opens the video at the moment quoted.
AI-generated insights derived from customer reviews and discussions on popular gun-enthusiast forums.
Owners and users of the FN 509 MRD LE are generally positive about its reliability. It cycles cleanly across different ammunition types, and the consistent trigger pull gets good marks for building confidence at the range.
Ergonomics come up frequently. The grip is comfortable for most hand sizes and the adjustable backstraps let shooters dial in the fit. The optic-ready slide is a genuine selling point for users who want to run a red dot without paying for a gunsmith cut.
The Tritium night sights are called out specifically as a worthwhile standard feature for home defense and low-light range sessions.
Trigger feel is where opinions split. Some shooters find the break and reset crisp and predictable; others feel it could be crisper compared to aftermarket-tuned competitors at a similar price point. That said, the overall value assessment in buyer communities tends to land positive given the FN-level build quality and the included night sights and optic cut.
Price Range: $659.49 - $659.49
| Vendor | Price | Condition | Link |
|---|---|---|---|
| Buds Gun Shop | $659.49 | New | Buy Now |
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