The Achilles heel on these is the safety lever.
The lever and the cross pin are press fitted together. This joint loosens.
Once it does the safety lever flops during firing causing problems.
Finding a CORRECT replacement is damn near unpossible. The chinesium parts are garbage.
I have resorted to having the lever welded to the crosspin. It works but looks like crap. Wrecks collectibility too.
Very carefully examine a potential purchase close at the safety. If you can see the circular pin joint it means the joint is working loose.
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