I like my safety that locks the bolt closed, can any of them work with my safety?
The earlier Shilen triggers do. I had a Remington Jones tuned left hand trigger with locking safety up for sale here with no takers. I was told that this place was the creme de la creme of places to sell them.
Here is an older Remington trigger with "short" safety.
Safety by itself.
Safety that locks the bolt when engaged. The Shilens of 20 years ago came without a safety or bolt release lever. You had to cannibalize the factory trigger for those parts.They now come with or without both, but I don't see a pic of one on their website. It's a good feature; not sure why Remington discontinued it. Also I understand that those older Remington triggers can't be fit onto a current production action.
Your best bet would be to call Shilen and ask.