40X-40XR Rim Fire
The 721/722/600/660/673/XR-100/XP-100R/Seven/40X/40XR utilize a 3 pin trigger group/bolt release configuration.
A Jewell HVRTSXR-ABC trigger group is Top RH Safety w/ Seven Bolt Release Lever.
A Jewell HVRSBR-ABC trigger group is Bottom Safety that would need to be re-configured w/ a Seven Bolt Release.
My personal 40X's & 40XR's are set up with the above Jewell trigger groups.