GP100 rear sight pin moves under recoil

S

stump shooter

New member
Each time I've been to the range with my GP100 the rear adjustable sight retention pin keeps moving out to the left after a few hefty rounds.

I can push it back and forth with my fingernail very easily although I have not been lucky enough for it to come out completely during fire.
All I can think of is to install a tighter fitting roll pin OR pulling the pin and squeezing one end to swage it for a tighter fit on it's entry side of the frame:confused:
Does anyone have any ideas otherwise?
 
Push the pin out. Using a small ball peen hammer, slightly flatten one end of the pin. Reinstall the pin. If you are really worked up over it, put a small drop of blue LocTite on the pin as you reinstall it.
 
Red LocTite will definitely stop the movement. Permanently. If you happen to bleed a little bit over to the rear sight itself, you will permanently bond the rear sight to the pin. That's why I recommend blue, but red will work.
 
YEA your right

The last thing you want to happen is to loose it.
blue works great, red will lock it.:D
Red locktite mixed with a drop of oil has worked well for butting barrels on recevers also.

a slight yaw bent into the pin, would cam it a little and prevent it from moving somewhat.

If you thingk you might want to change it in the future I would use Blue locktite.

I like red locktite though, I saved a lot of money on asprin with it.
.....
I put the stuff on my kids lips 30 some years ago. still works.:eek:
 
Wow! I was this >< close to mentioning a teeny film of red loctite on the ends as my third option but I was afraid I get the "never use loctite" lecture, LOL;)

I was considering the chance of bleed over into the sight itself. I may try the yaw or widening one end of the pin and tack it in place with some blue.

Thanks!
 
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