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AR15.COM
4/8/2010 3:45:59 PM EDT
This is the epitome of Wiley E Coyote School Of Gunsmithing...

I put together a 1911 a few months ago using an RIA frame, barrel, and GI slide.  Quickly decided that little nub of a front sight needed to go, and put some LPA adjustable sights on.  Everyone told me that LPAs ride a little high, and for a while I accepted this.  There was a millimeter or 2 of clearance between the top of the slide and the bottom of the sight.  Ugly, but not a detriment to function.  Gun was reliable and accurate, what more could I want?

Today I get the bright idea to file down the bottom of the rear sight to lower the sight unit down to the top of the slide.  After 1.5 plays of Cinco Diablo, the rear sight slides back and forth in the dovetail.  Not good.  I REALLY want to continue to use my LPAs, so here's my question:  Can I use my soldering kit to secure this?  I'm ok with it looking like crap (it did before), but will using solder damage my gun, or make the sight absolutely impossible to remove should I want to get the slide cut for Novaks in the future?

Thanks.
4/8/2010 7:51:54 PM EDT
[#1]
I had the opposite problem, I dented a 10-8 rear cramming it into a very tight Novak cut.

I vote for some sort of adhesive, red LocTite or a good super glue. It's a slightly less final solution.
4/8/2010 7:55:04 PM EDT
[#2]
I'd try silver soldering a steel shim to the bottom of the sight and file to fit.
4/8/2010 9:07:00 PM EDT
[#3]
Quoted:
I had the opposite problem, I dented a 10-8 rear cramming it into a very tight Novak cut.

I vote for some sort of adhesive, red LocTite or a good super glue. It's a slightly less final solution.


There's enough play in it that loctite or super glue isn't going to cut it.  I had to reshape the base of the sight just to get it in originally, and now that I try to make it more aesthetically pleasing by lowering it, there's not enough material to hold it without wiggle.



Quoted:

I'd try silver soldering a steel shim to the bottom of the sight and file to fit.


Might have to try using the solder to build up the front, back, and bottom of the wedge on the sight and then fitting it.  Thoughts?
4/10/2010 5:30:52 PM EDT
[#4]
Devcon will fill the void and hold it in place. Make sure every bit of oil is off the metal parts. Use Gun Scrubber or similar cleaner to strip all the lubricants from the slide and sight.  A minimum of 24 hours to cure at room temperature. Longer if it's cooler than that. Use Q-tips soaked in vinegar to remove any seepage as soon as you get it where you want it.. Once it dries it's there for good, only high heat will get it off after that. Make sure it's zeroed.
4/10/2010 11:01:46 PM EDT
[#5]
Have you tried peening the bottom of the sight with a punch?    This is the way most people I know fix a loose sight.