My M&P 9 Shield came without the pin securing the yellow disassembly lever, it was only held in by spring pressure. The pistol never left the gun shop so I can't say how it shoots. I've been to the shop twice and the pin has been ordered 3 times with the promise that it will be there in a week. I can say that the S&W cutomer service speaks a lot of BS! The pistol was purchased the day before Thanksgiving and it still sits in it's box at the gun shop.