How To Clean & Lubricate A FN 503 Compact Pistol

Published on May 15, 2020
Duration: 12:06

This guide details the field stripping, cleaning, and lubrication process for the FN 503 compact pistol, presented for new gun owners. It emphasizes using CLP cleaner lubricant and protectant, along with common tools like t-shirt patches and polymer picks, to maintain the firearm. The instructions cover disassembly, thorough cleaning of all components including the barrel, slide rails, and frame, proper lubrication of high-friction areas, and reassembly with a function check.

Quick Summary

To clean and lubricate your FN 503 pistol, first ensure it's unloaded. Disassemble by removing the slide release, pulling the trigger, and sliding the assembly off. Clean the barrel, slide, and frame with CLP and a brush, paying attention to rails and the extractor. Lubricate high-friction points like barrel lugs and slide rails before reassembling and performing a function check.

Chapters

  1. 00:10Introduction & Overview
  2. 00:40Tools & Supplies
  3. 01:34Dropping Magazine & Safety Check
  4. 01:50Disassembly - Slide Release
  5. 02:41Disassembly - Trigger Pull & Slide Removal
  6. 02:46Disassembly - Guide Rod & Barrel
  7. 02:54Cleaning - Barrel
  8. 03:18Cleaning - Barrel Lugs & Feed Rail
  9. 03:42Cleaning - Guide Rod & Recoil Spring
  10. 04:04Cleaning - Slide Interior & Rails
  11. 04:37Cleaning - Extractor
  12. 04:52Cleaning - Frame (Chassis)
  13. 05:16Wiping Down Components
  14. 06:05Cleaning - Guide Rod (Continued)
  15. 06:17Cleaning - Slide (Continued)
  16. 06:31Cleaning - Slide Rails (Detailed)
  17. 06:48Cleaning - Breach Face
  18. 06:57Cleaning - Under Extractor
  19. 07:13Cleaning - Frame Springs
  20. 07:57Lubrication - Barrel Lugs
  21. 08:27Lubrication - Slide Wear Points
  22. 08:36Reassembly - Barrel & Recoil Spring
  23. 09:01Lubrication - Slide Rails (Reassembly)
  24. 09:15Lubrication - Hammer Area
  25. 09:24Reassembly - Slide to Frame
  26. 09:59Reassembly - Slide Lock Lever
  27. 10:48Cycling Action & Function Check
  28. 11:05Final Wipe Down & Conclusion

Frequently Asked Questions

What are the essential tools for cleaning an FN 503 pistol?

For cleaning the FN 503, you'll need CLP cleaner lubricant and protectant, cut-up t-shirt patches (or specific gun patches), a tipped polymer pick for detailed areas, a bore guide rod, and a toothbrush. A flathead screwdriver may be helpful for the slide release during disassembly.

How do you safely disassemble the FN 503 pistol?

First, ensure the pistol is unloaded by removing the magazine and visually inspecting the chamber. Then, align the slide release lever's indentation with the frame, pull the trigger (while pointing in a safe direction), and the slide will come off the front. Remove the guide rod/recoil spring and then the barrel.

Where should I apply lubricant on the FN 503 after cleaning?

Apply a light coat of CLP to high-friction areas and points of wear. This includes the barrel lugs, barrel hood, slide rails (on both the slide and frame), and around the hammer area. Avoid over-lubricating the firing pin channel.

What is a common issue to watch out for when cleaning a pistol's firing pin channel?

A common issue is over-lubricating the firing pin channel. Excessive CLP or oil in this area can lead to 'light strikes' or 'white strikes' when firing the pistol, potentially causing malfunctions.

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