Sr22

Hello all!

So I just got a ruger sr22 pistol and have been looking for a threaded barrel kit and possibly some other things but can't find anything in stock.

If anyone knows of in stock or ideas for the following, please advise! TIA

1. Threaded barrel kit
2. Suppressor or high sights
3. (Long shot)- flat faced trigger

I would have gotten a mk4 since I know those are all available for it, but I got the sr22 on a trade. Any help is appreciated.