The only thing I know of is S&W had a recall on the Bolts of the AR 15-22. Seems they had an issue of double fire or slaming the bolt shut and firing. They did a recall of all bolts made before 2019 but it seems the issue was just a few in 2019.
I have not heard of any issues with the ARs. The S&W Forum is pretty up to date on all things S&W. Ill log in and look around.