[Portugeejn]

I purchased a Cimarron Custer model, and talked with the folk at Cimarron about an issue I had with the polishing on the left side of the trigger guard. At the same time I mentioned the ugly pin retaining thumb screw, and they said they would send the normal one out to me no charge. Great customer service.

 

[Portugeejn]

My guess is that the thumbscrew is a lawyer requirement to make the 2 position cylinder base pin “safety” (that is required for import) usable without needing tools.