I just asked the CLR/Stainless question directly to Griffin Armament:
Message: Is it safe to use CLR to clean an Optimus 9 (tube, baffles, attachments, end caps, everything)?
If so should it be diluted or used pure?
Thank you.
Good Afternoon,
It is not. I have seen it destroy tubes. When using an ultrasonic cleaner on our user serviceable suppressors, we advise only putting unfinished components into the sonic cleaner. Things like the stainless steel baffles, piston, and spring can be put into sonic cleaners. The solution we typically use for this is Zep Heavy Duty Citrus Cleaner. Make sure not to use the sonic cleaner for finished components like the tube body, end caps, muzzle devices, mounting interfaces, etc. For cleaning the tube body, a round wire brush is a good option for cleaning.
-Lucas
Griffin Armament Customer Service Representitive
262-200-0003 Option 1
www.GriffinArmament.com