I have a XS7 with the varmint barrel in .22-250.
The trigger is a copy of the Savage accu-trigger (I think they might have been part of the same parent company?) It should be adjustable. The action is a Rem 700 clone and takes all relevant scope bases, stocks etc.
I fitted a Boyds stock, it’s awesome. A very good gun for someone, don’t be put off by the brand snobery.