Originally Posted by
CuradoKid
I know this is an old post, however, I just want to share my experience. I have a BCM low profile gas block and I used Loctite red (#271) on the set screws and DID NOT pin the gas block to the barrel. That was 2 years ago and now I wanted to change the handguard, so I had to remove the gas block. The loctite label says to heat the threads to 500 degrees to remove. I used a Wagner heat gun on high for about 6 minutes until my gas block started to turn a gray/white color. The sets screws easily came right off. Originally, I tightened them to 25/inch lbs, and never had any gas leaks or cycling issues. I hope this helps somebody one day.