I am ambivalent about bumpstocks. I could care less of they are banned. You could easily 3D print one. It’s an almost impossible thing to enforce. But I have honestly never known anyone who felt the need to have one. I could achieve the same result by linking my pinky through my belt loop and holding the trigger back. Same result. No extra gear to mess with.
As for background checks. I do not like the idea of expanding them. Most gun purchases are covered by a check. But I should not have to go to a gun dealer to give one of my guns to my children.
We need better cooperation and enforcement of existing laws. Passing a bunch of new laws isn’t going to stop the next shooter. We had ten years of an assault weapons ban (or thereabouts) in the 1990s. It had zero impact on gun crime.