Not a rifle but my new Mossberg 500 28” right out of the box on my first bird hunt would click and light primer strike every 3-10 rounds. Sent it in and had it back within 2 weeks. New trigger group and bolt w firing pin. No problems since
I’d be lying if I didn’t say I’ve followed a few YouTube videos and corrected the handful of mine that were pig nosed. Heat gun and some toothpicks if I remember right. Just my .2 cents
Seems like the Anarchy bolt shroud upgrade is a popular one. I haven’t done it yet but it’s relatively inexpensive and does add a little better look to it if you go with the fancier one