pins backing out of M&P .40! *1 pic*

I have a weird problem with my M&P .40. after every couple hundred rounds, the pin located directly above and to the right of the trigger keeps backing out of the right side of the frame :scrutiny:. I've been simply hammering it back in with a pin punch if it gets too far out. Is this a serious problem that should be looked at by Smith & Wesson, or is it something I can fix at home? or is it even something I should worry about at all?

http://farm4.static.flickr.com/3588/3344870036_b7c0c6d701.jpg?v=0

P.S. This picture shows what I'm talking about, although the pin usually backs out a little more before I hammer it down.

MIght as well send it back. That's what warranties are for!

Just curious .. have you ever detail stripped the frame?

I'm wondering if you can simply Lok-tite it. I'd call S&W to ask.

I've never detail stripped the frame. I'm worried that I'll have some little parts left over when I put it back together :)

u can put a drop of crazy glue on tha tpin and then hamer it back int and it willnever do that again, but yet you can still take that pin out with ease. I would not waste my time sending that back to Smith, It is fixable in house..