I have the RA-140 in an AR. Appears to be the same as the one you're showing. Much better than a standard mil-spec. I installed it w/ KNS anti-rotational pins (the 15-22 pins are longer and available). Nothing wrong with it at all for the price. I have 3-4 other aftermarket triggers which I like better but they are more costly. Not sure how the RA functions with a rim fire. As you've likely read, a little bit of pre-travel (acceptable), nice break, closer to 4lbs on mine (no biggie). I noticed the RA-140 at opticsplanet is 119.00 w/ free pins and free shipping. That's pretty good.
Rise Armament RA-140 Super Sporting Trigger | Up to $10.00 Off 4.7 Star Rating w/ Free Shipping
If you can determine it'll work with the 15-22 I'd go for it. 4 July sales around the corner.
Remember, you'll need to purchase the anti-rotation pins specified for the 15-22. AR pins are too short.
According to the instructions the anti-rotation pins are not an absolute requirement. In the below link pay close attention to step 8 regarding the 2 "set screws". You want them to just touch the bottom of the rcvr. Since this is a polymer rcvr, you'd be best served to cut a small section of thin brass, etc stock and position it in the rcvr where the 2 screws make contact. An alternative is to cut a small piece of a drink can and do same. You're just keeping the screws from digging into the polymer.
How to Install Your RISE Armament Trigger | RISE Armament