These checkered grips do not flex like the standard plastic grips and provide a very comfortable and secure grip. I prefer these to the soft rubber Hogue grips and these fit the Sig frame better than any other grips I've used. I installed these with Hogue screws and no lock washers. The screws loosened quickly when firing the pistol so I added thread locker to the assembly and now the screws stay tight.
Pros: slimmer and more comfortable than factory plastic grips
This review was written in the old system and had content requirements that are different than reviews written today.