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Discussion Starter · #1 ·
My muzzlebreak is snug when I have the set screws tight, but there are some small gaps, by the front blade sight and behind the sight.

I was going to use some epoxy to fill in these gaps to prevent gas from escaping and staining my barrel. I also was going to put a little where the pin goes through. Can you guys think of any reasons why this would be unsafe? I know it might not last because of the heat, but I was going to try it anyway. BTW I have a bushmaster AK74 style muzzlebreak that fits over my sight and pins in place.

Thanks in advance for the info :)
 

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bubba---This sounds pretty cosmetic to me & I don't see any problems. The gas pressure souldn't be that great but the heat may be. Whatever you use be sure the surface is clean & the epoxy will withstand several hundred degrees. The barrel won't (read shouldn't) get that hot but the gas may.

Good luck
Bushwack
 

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It may smell funny when it gets hot. I would use a release agent on the barrel, and sight, in case some day you want to take it off.

You may want to go to the hardware/auto store, and check out liquid weld. I think it will stand more heat, some is stainless in color, but I'd still use release agent on the barrel, and sight.
 

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Discussion Starter · #5 ·
Hi cajungeo,

If I use a release agent, doesn't that kind of defeat the purpose? The epoxy won't hold and just blow out after the first shot, right?
 

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No it won't, because you don't use the release agent on the inside of the muzzle brake. Therefore it bonds to the inside of the brake, not your barrel/sight. You must clean the inside of the brake to remove all the powder residue, and oils.

Note: even with the release agent on the barrel, there MAY be a mechanical lock form, which may prevent you from removing the brake, but you will have a lot better chance.
 

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Discussion Starter · #7 ·
Oh I see.. I think I will take your advice. I'm also talking about a VERY SMALL amount of epoxy, like a tiny fillet.

I might even try some blue lock tight as a sealant.......

Then again, I might just leave it alone :)
 

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loctite blue dosen't get hard, it is medium hold.
 

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All Loctite thread locking adhesives get hard, it's just some are stronger holding than others. These adhesives are refered to a anarobic, which means they will only cure when oxygen is not present. Just in case you need a lot of Loctite thread locking compound it is available in handy 55 gallon drums.

Later
Bushwack
 

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If you have a stainless mini, you might try some Metalset A-4. cures to an aluminum color, and is very tough. There is another, but I'm having a brain bubble at the moment. :eek: But I'd bet a bearing supply house would have a selection. And you'd then have enough left over to bed the stock! Lotsa stocks!!
Spud:usa:
 
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