Originally Posted by Scooby
If you go down the path trying to reduce every potential safety problem you will then try banning anyone from modifying, tuning, repairing or maintaining their rifles.
I personally don't know anyone who's knocked up an air cylinder themselves.
But as far as the known makers of aftermarket cylinders is concerned, who does
properly test them and what proof of this could I get as a buyer?
I'm guessing the majority of shooters considering a titanium cylinder would go to such a specialist. Or maybe their local engineering firm who doesn't have the first idea about pressure vessels and who should
decline the job.