MP22 rifle I had was the most reliable 22lr rifle this side of a 10/22. I would buy the pistol version in a heart beat.
I mostly shot Fed Auto Match through it, rarely ever had an issue. It liked high velocity rounds, but it would also reliably shoot sub-sonics with a suppressor also.
Mine has been very reliable and accurate.
Seem to like CCI best (no surprise), mini mags when just plinking, their subsonic when suppressed, Federal value pack Ammo runs well also.
Seems to short stroke with Remington.
The only complaint I have is the same for the rifle and it’s just a personal gripe, I really dislike the gap at the rear of the pistol grip that MagPul grips leave.
I’ll change it out to an Ergo eventually.
I have 2. 1 is the factory 8” and I have another one that has a 4” cut down. Both run flawless. I’ve tried old Ammo, junk Ammo, premium and they all run great. I was surprised on the accuracy as well. It’s good enough for me to take out for rabbits.