Sure enough the allen screw was spinning in the hole, with only a slight purchase in the threads. But it was enough for me to back the screw out, and to my surprise I found that the synthetic rail threads in the hole had come out with the screw! Here's the wound spool of rail material that came off the screw:
![Image](http://i.imgur.com/AeYFS39.jpg)
I'm not sure how to approach this from a warranty perspective. Would the whole rail have to be replaced? Or a re-tap of the hole for a slightly larger allen screw?
Hunting season literally starts tomorrow and I don't want to sit it out for a warranty repair. I put the screw back in and tightened it until it tried to grip a little - probably enough to use it through the season. The rear screw in the trigger area is fine and still holding tight.
Is this the first time anyone has reported this happening on an SMF rail?
![Confused :?](./images/smilies/icon_confused.gif)