How do you remove a RDS?

[mmc45414]

No what I was saying

I think my post sounded like I was disputing and the intent was more like "and another thing...."

[MrM]

I removed the LTT plate from my Beretta to do some extractor maintenance. I’ve been following the optic mounting steps on these forums (especially from @SoCalDep). I just test fit everything with the alloy steel McMaster-Carr screws. Now I'm in the middle of degreasing all the parts. How should I remove the old cured Loctite 248 from the threads in the slide hole? I've used Gun Scrubber. I've also used acetone and brake cleaner with pipe cleaners and a brass tooth-brush. There is no oil or grease left but there still seems to be white powder in the threads (I'm assuming its the loctite). Help. My first post here. I am amazed at the wealth of knowledge on so many subjects. Thanks in advance.