Greetings from South Louisiana! New guy here.
I've been using Wipe-Out Foaming Bore Cleaner in a JP CTR-02 and a Daniel Defense M4 after every range session for several years. Upon return both barrels and gas tubes are foamed liberally with Wipe Out Foaming Bore Cleaner as are the separated parts of the BCGs which are wrapped in zip lock bags and left to soak over night. Next morning several felt buttons and cotton patches are pulled up the bores with a Patchworm, and BCG parts are brushed with Wipe-Out if residual debris is noted. Then barrels, gas tubes and BCG parts are flushed with odorless mineral spirits or any aerosol cleaner-degreaser, dried with compressed air, and lubricant-protectant is applied where relevant.
To date I have seen no evidence that Wipe-Out Foaming Bore Cleaner is causing any noticeable damage or discoloration to any metallic part that it contacts over night, including small areas of the upper and lower units where anodization has worn off of aluminum edges.
I've not worried about Stainless Steel gas tubes per Wipe Out being reported to be non-damaging to Stainless Steel. But more importantly to me is that it has caused no visible change whatsoever on the CTR-02's 416 stainless steel alloy barrel or on/in it's S.S. compensator or on the surface of the gas tube extensions that are visible in each of the uppers. I have not used a bore guide for years and it's not uncommon for the foam to flow back into the upper unit where it clearly aids the removal of carbon and gunpowder residue the next day.
Wipe Out and Browell's EZ-Soak have completely replaced the collection of other goodies that are collecting dust in the gun stuff closet, including the ultrasonic cleaner that I regularly used on the BCGs in earlier times.