Home CMMG How To Clean, Assemble, and Maintain an AR15 Bolt Carrier Group

How To Clean, Assemble, and Maintain an AR15 Bolt Carrier Group

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It’s simple, but needed! Maintain your BCG so they last a LONG time! Be sure to hit the subscribe button and checkout our website at the link below!

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0:00- Intro
1:10- How to disassemble
2:28- Gas rings
3:10- Gas key
3:40- Cleaning
4:18- Oil
4:52- Reassembly
6:29- Checking gas rings
7:12- Maintenance
8:31- Outro

All information provided is merely for entertainment and informational purposes. Should you decide to act upon any information provided, you do so at your own risk. Midwest Gun Works does not accept any liability for any mistakes, errors, or faults that may occur. Refer to the manufacturer for specifications of the products used. It is recommended that all modifications or repairs be done by a qualified Gunsmith.

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2 COMMENTS

  1. When changing gas rings, always point the sharp edge of the 3 rings towards the bolt tail.. Never use a metal scraper to remove carbon..Use plenty of oil, people tend to under lube their bolts and carriers…If you mark the top of the cam pin and place it in the same direction it will only wear on one side..

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