I have seen some dumb things before.. But this one is really a new level.
If you haven’t deduced the dubious reasoning for this cut out, let me explain. The idea is to give you something to rack the slide with because the other unneeded extra parts won’t let the user grips the rear slide serrations. Apparently reaching forward of the ejection port to rack the slide is too much work?
The other stupid part blocking the ride side serrations are to keep the user from causing a malfunction from the high ride thumb position touching the slide during operation. Which is really retarded in my opinion. In fact it’s so retarded I almost used the F word to describe how retarded. Like I said, only a SA owner would think this up. I keed, I keed. Not really though.