Brownells - Cleaning the Brownells CMMG AR-15 .22 Conversion Kit

Published on August 21, 2012
Duration: 2:22

This guide details essential cleaning procedures for the Brownells CMMG AR-15 .22 Conversion Kit to ensure optimal performance and accuracy. It emphasizes pre-use chamber cleaning of the host firearm, thorough post-shooting cleaning of the conversion kit's bore and chamber to remove powder and lead deposits, and debunks the myth of using jacketed bullets for lead fouling removal. The instruction highlights specific tools and cleaning agents for effective maintenance.

Quick Summary

Proper cleaning of your Brownells CMMG AR-15 .22 Conversion Kit involves pre-use chamber cleaning of the host firearm and thorough post-shooting cleaning of the bore and chamber to remove powder and lead deposits. Use specialized tools like chamber brushes and mops, and cleaning agents such as JB Compound for lead fouling. Avoid using jacketed bullets to clean lead, as this can embed fouling and damage the barrel.

Chapters

  1. 00:00Introduction & Benefits
  2. 00:06Pre-Use Chamber Cleaning
  3. 00:15Tools for Chamber Cleaning
  4. 00:32Post-Firing Cleaning
  5. 00:48Waxy Lube & Fouling Issues
  6. 01:00Myth: Jacketed Bullets for Lead Removal
  7. 01:25Thorough Bore and Chamber Cleaning
  8. 01:43Gas System Residue
  9. 01:58Ammunition for Reduced Fouling

Frequently Asked Questions

Why is it important to clean the .223/5.56 chamber before using a CMMG .22 conversion kit?

Cleaning the host firearm's .223/5.56 chamber before installing the CMMG .22 conversion kit removes any existing fouling. This ensures the conversion kit will function correctly and prevents potential issues caused by debris or carbon buildup from previous centerfire rounds.

How do I effectively remove lead fouling from my AR-15's barrel when using a .22 conversion kit?

To remove lead fouling, use a dedicated cleaning compound like Brownells JB Compound or a bore solvent specifically designed for lead and copper. Avoid using jacketed bullets, as they can embed fouling further into the barrel and cause damage.

What tools are recommended for cleaning the CMMG AR-15 .22 conversion kit?

Recommended tools include an AR-15/M16 chamber brush for initial cleaning, an M Pro 7 gun cleaner or similar solvent, and an AR-15/M16 chamber mop for drying. For stubborn lead fouling, Brownells JB Compound is suggested.

Can shooting .22 LR rounds damage my AR-15's barrel?

While .22 LR rounds themselves are low-powered, improper cleaning or attempting to remove lead fouling with jacketed bullets can lead to barrel damage. Consistent cleaning of powder and lead deposits is key to maintaining barrel integrity and accuracy.

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