Figured Id drop this here and be a test subject for everyone.
Ive owned a AAC M4-2000 for several years now, I rarely shoot anything 5.56mm unsuppressed now a days.
Yes I understand almost every rifle suppressor manufacturer says not to clean sealed rifle cans, as they supposedly self cleaning. Hmm sounds somewhat familiar to the Vietnam era thinking of when it came to ARs doesn't it?
In my experience from shooting mine quite a bit, some sort of cleaning will eventually be needed. I am 8K+++ down my can, which is a heavily conservative estimate, and it has significant carbon fouling.
I have noticed that switching between different adapters, such as a MB to a FH on separate hosts will knock a small amount free, but still there is significant fouling.
One thing to note, I didn't use a FH mount until this summer, doing so knocked a few large chunks free, and then I noticed I had a end cap strike. Not sure I can 100% blame the carbon breaking loose causing this, but having that rattle around inside a can cannot be good.
Ive tried a few different thing, I have soaked it in mineral spirits, carbon killer, CLP, with absolutely no results. I have tried copper and steel brushes, with no results. The only thing that has even began to remove the fouling is a flat head screw driver and a hammer(yea its in there that good).
So despite the standard response of, you don't need to clean your suppressor, what can I do here?
Update- I already whaled at it with a screw driver and hammer. Next step is to either dip it or drop it in the cleaning tank at the shop. Ill post pics with the after action results of which ever I go with.
[span style='font-weight: bold;']Updated pic after being tenderly loved with a hammer and flat head screw driver[/span]
2ND Update: Now onto more serious measures.
First several cycles of the ultrasonic cleaner provided zero results. I was about to think I wasted my money, then a few more cycles and the tank looked like this. After the last cycle of the night I pulled the can out and could clean carbon from the blast chamber much easier than I ever thought I would. I think with several more hours in the UC it will provide nice results
Im still not done. Im going to do several more cycles in hopes it comes out looking new.
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