I was shooting my Gen2 today and the castle nut slid back... scraped the tube too. I went to thread it back into place and found there were no threads on the plastic receiver. There's some threadlocker or something that makes it look like there are threads but that's it. Is that normal? I'm guessing this needs to go back to Keltec, maybe I can get an updated sight and trigger while it's there...
Click image for a bigger version if you want.

Click image for a bigger version if you want.
