I just noticed the same issue with my Competition model. The pin was sticking out about 1/4" on the right and appeared not to be in the left side frame at all. I was able to align it and gently hammer it back in but I'm sure it will happen again. Only have about 350 rounds through it so far...
I have an LC9s which I like the size of but it is very snappy. I think the LC380 is the same size but would like the striker version. Think Ruger will come out with an LC380s?
Here is the reply I got from TandemKross when I asked if the Mark II sear would work in the Mark IV -
"Unfortunately they are not compatible. We will be carrying a MKIV Sear very soon they are on there way to us now."
Took my new Mark IV Competition to the range today for the first time. Tried 6 different ammo brands/types from both magazines and had zero failures over about 150 rounds. Really like the gun, shoots much better than me. I'd like to improve the trigger pull but don't really want to install...