Ok, I am not sure whether to panic or not, but.... Looked at my S4O couple days ago while cleaning. Found something I didn't want to see - pieces of the polymer frame cracked and falling off. Here's what I am talking about: If you take your Steyr and take off the slide - from the front of the gun on the inside of the frame there are 2 plastic pieces that stick out on both sides of the frame, just before the metal receiver begins. Both of those on either side are cracked at 45 degree angle and about 1/4 inch deep from the top. Cracks appear to be not affecting any function, but both of them on either side have fallen off since the inspection. There's still good chunk of the original pieces left, but fronts of them (where the frame smacks into them) has been cracked off. Has anyone experienced anything similar, and should I be making calls to SMI? I will post the pics when I get home, any info appreciated. PS Test fired the gun today - it was flawless. I am concerned about anything else starting to wear off and crack.