FN 509 Midsize No Manual Safety Black 15+1 9mm Pistol - 15+1 Rounds, 4" Barrel, Polymer Grips, Blue/Black, 3-Dot Sights

Questions & Answers

• Q: If one were to put this firearm on layaway while FN is offering a rebate, would that person still receive the rebate if they paid the layaway in full after the rebate offer expires?

  • Answered
  • Asked 12/28/2023 10:59 by William S

  A:

  Hi William and welcome. No Sir. The rebate, if Dec. 31st, must be paid for and invoiced by the 31st and you have until Jan 31st to submit rebate application. Cheers and happy holidays!

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• Q: I need to now if can use 24r magazine

  • Answered
  • Asked 05/17/2021 00:46 by Juan D

  A:

  Juan, yes Sir. the 24rd Magazine is the same as the 15rd magazine that fits and locks into the magazine well. The 24rd magazine is just longer and holds more rounds. Cheers and stay safe!

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• Q: Two different model numbers but looks like the same gun. Please help.

  • Answered
  • Asked 02/10/2021 19:15 by Gerald P

  A:

  This one has a standard slide and sights, the MDR has "FN Optics Mount System" basically just a cut slide for running an optic.

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• Q: Will the 17 round mags fit?

  • Answered
  • Asked 09/13/2019 05:46 by Llewellyn D

  A:

  Yes, they will fit however FN recommends using the spacers they sell to prevent overinsertion and potential damage. Inserting them carefully or at least without really slamming them in hard should be enough to avoid any issues.

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