I have several KAC panels, and none will work on my M&P .22. The metal clips won't clamp on. Silly me, as I had assumed the rails on that thing were standard 1913 rails, but something sure ain't right. So -- anyone got the rifle? Have you put rail panels on? If so, what brand did you use and did they actually lock on? TIA. Wanna kill these ads? We can help!