Look at the fix for loose screws on the P11 clip at post 7 of the New Stuff thread in the Fluff and Buff Topic. I have done this to my P11 and it works. I have not tried to install a belt clip on my P3AT, so I am not able to address this fix to that gun.On my P-11 the pin that would hold the belt clip in place isn't very tight. I would go to the hardware store or a gunsmith to find a better fastener for the belt clip. I have never removed the pin on my P-3AT.