Metal started stripping right away. Mounted a moderate-weight can on my gas pistol and the adapter straight up slid off over the threads. Like, it ripped itself out.
Which gun were you trying to place it onto? There are some pistiols that are 12mm CW threads instead of the usual 11mm. Also CW vs CCW can cause issues as well. You could always reach out to us be email if unsure about compatiblilty. We can help ya out best we can with that.