Firearm Maintenance: FN SCAR Cleaning – Part 2

Published on July 25, 2014
Duration: 4:19

This comprehensive guide details the cleaning and maintenance procedures for the FN SCAR series, specifically covering the piston, gas regulator, barrel, receiver, trigger module, and bolt carrier group. Instruction is provided by a professional gunsmith from Brownells, emphasizing the use of specialized tools and adherence to FN's recommendations for optimal firearm function and longevity. Proper cleaning techniques are crucial for maintaining the reliability of these short-stroke gas piston systems.

Quick Summary

Proper FN SCAR cleaning involves specific steps for the piston, gas regulator, barrel, receiver, trigger module, and bolt carrier group. Use tools like bronze brushes for the piston, dental picks for gas ports, and a Sinclair rod guide for the barrel. Always ensure the firearm is unloaded before maintenance.

Chapters

  1. 00:00Introduction and Tools
  2. 00:20Cleaning the Piston
  3. 00:32Gas Regulator Maintenance
  4. 00:48Barrel Cleaning
  5. 01:49Receiver Cleaning
  6. 02:22Trigger Module Maintenance
  7. 03:02Bolt Carrier Group and Firing Pin

Frequently Asked Questions

What are the essential tools for cleaning an FN SCAR?

For FN SCAR cleaning, you'll need a .22 caliber brush, jag, cleaning rod, nylon and bronze brushes, pipe cleaners, dental picks, solvent, polymer-safe aerosol gun cleaner, and a Sinclair SCAR rod guide for barrel maintenance.

How should I clean the gas regulator on an FN SCAR?

Inspect the gas ports in the regulator for debris or carbon. Use a dental pick to carefully clear any fouled ports to ensure proper gas flow and prevent malfunctions.

What is the recommended method for cleaning the FN SCAR barrel?

Use a Sinclair SCAR rod guide. Run a solvent-soaked patch through the bore, let it sit, then use 15-20 strokes with a bore brush, followed by more solvent patches and finally dry patches until clean.

How do I safely clean the trigger module on an FN SCAR?

To safely clean the trigger module, carefully release the hammer while holding it to prevent damage. Flush with aerosol cleaner, scrub with a nylon brush, and wipe dry.

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