JB Weld on gun parts

[45R]

I purchased an M1A last year and duing the first 50 rounds, the rifle was a 2-3MOA shooter. Not bad for a rack grade SA. After 50 rounds the rifle started moving to around a 6MOA shooter with the same ammo.

THR member Carnitas Dxed the issue as a rear sight problem. The apeture exhibited wobble in 2 planes of motion. So I tried peening the rear sight base. That didnt work out every well so I decided to take a different approach and applied JB Weld on the sides of the rear apeture and fitted that rear sight base with the apeture part. It is rock solid. Another forum member is a wee sceptical on how long it will last. JB Weld has been used to work on engines, So my question for you gunsmiths and tinkerbugs is how well does JB Weld work for things like this. I can't be the first person to have ever tried this method.

Well I took the rifle out today and dropped about 3 boxes of ammo into the M1A. The rifle is sighted in very nicely.

 

[stans]

I have used JB Weld to attach home made trigger stops to a couple of Mauser 98's and a Ruger Mark II Government target 22 pistol, no problems yet. I also used it to touch up the glass bedding on my M1 Garand, seems to be working ok.

 

[P95Carry]

This stuff has great potential .... if used carefully ....... which means initially, scrupulous de-greasing and .. allowing a full cure time - and then some.

I put it in ''last resort'' category but - it sure can help at times.

 

[R.H. Lee]

Well, I know it won't hold a lawnmower muffler on for long. Maybe exceeds the heat threshold. But, I'm thinking of using some JB Weld on the loose plunger tube on my 1911.

 

[stans]

Loose 1911 plunger tube, happened to me. I shot brake cleaner between the receiver and the tube, the put a little red Locktite along the top edge of the tube, capillary action drew it under the tube, clamped the tube to the receiver (gently) with locking pliers and wiped off the excess. Let it set up over night, no more wobble.

JB Weld is thick and won't flow very well, Locktite is thin and flows between the tube and receiver very nicely.

 

[simmonsguns]

have not used jb weld,i have used and still use devcon steel bed for bedding actions in to synthetic stocks.it works good and has a cure time that allows for clean up.it is also repairable if you get a void after it's cured.jb weld is close to the devcon mix.with the amount you need though,it gets costly.you can also use it to build up palm swells and grips for target pistols.

 

[Clark]

I made a scope mount for an Enfield and JB welded it on.
It poped off with the first shot.
Glass works great as a bedding, I still need a positive attachment.
So I need screws.
But the JB makes the fit much stiffer.