I have an M&P 9 that is my everyday carry and also my "service" pistol in the prepper armory. I bought an M&P 22 as soon as they were available because i do a lot of taching to new firearms shooters and wanted something similar to my M&P 9.
With the exception of the safety and the weight, it is just about identical to the my full size M&P 9. There are no changeable grip inserts. It appears to me that the grip size is the same as the medium grip I use on the 9. The barrel is threaded but i live in Illinois so I can not have a silencer.
Until I move.
Firing it is a joy and a pain. By jouy, it fired CCI and Federal without a failure of any type and it is right on the money all the way out to 25 meters. Having all the success with the Federal and the CCI I decided to see how many Remington's would fire until a dud or failute to feed.
I am still waiting because it fired about 50 straight rounds of Remington without any problem at all. I immediately ran out and bought a lottery ticket because I figured I was "golden". (Sorry, it was there so I took the shot)
The pain? It only comes with one magazine of 10 rounds. It got frustrating to have to keep loading and after about 200 rounds or so it also go painful.
I usually use small dessert sized paper plates mounted on cardboard with staples because I am cheap. This time, I had two vertical rows of five each so I started doing double taps on the lower plate and a single 'head" shot to the plate right above it. I started doing this a lot so just for the heck of it, I unholstered my M&P 9 from my super tuck and shoved the M&P 22 i (fit perfect) and started doing draw and fire exercises using a double tap to the triangle with a single head shot.
I could not stop and now I am freaking in love because I blew about 400 rounds of ammo doing immediate action drills and that was less then $20.
I can't believe I made a really good, sensible firearm buy.
I wish Glock would come out with something similar and in the Glock 19 size.