otis24, Sorry for your bad luck.
I have read on this forum several complaints about the Shield. Plus I have seen several quality issues with S&W's over the last several years.
However, I have several friends that have the 9mm Shields and are quite happy with them. So, when the rebate started I decided it was time for me to get one.
Just to make sure I really needed one. I took my brother's Shield out in the back yard with a mag of his ammo and proceeded to chew the paint about the size of a tennis ball off the center of a 10" steel plate @ about 12 - 15 yards.
The Shield I purchased shot high with my 147gr. ammo. So, I changed the front sight to change POI and put on Talon rubber grip tape.. Took it to a local Steel Challenge match and shot it.
I figure if a firearm is going to mess up,, it will do it at a match.
The Shield shot like a champ. No problems. I actually shot one of my best matches with it.
I liked it so much I purchased another one. So, far No problems with it either. It also shot high for me with my 147 gr ammo. But switching to 124 gr ammo centered up the sights just fine.
Guess I'll have to change the sights or start loading two different bullet weight ,,
Again sorry for your luck,, hope you get the bugs worked out..