Rifle Scopes Scope / Ring Corrosion

[Stovetop535]

Is this galvanic corrosion from aluminum rings?

I am swapping scopes around this weekend due to acquiring a new one through a trade and when I pulled the scope apart I found this.

I tried alcohol and gun oil to wipe it off, neither or which have any effect. Anything I can do to keep this from happening again?

 

[KZP]

Can't offer any help on the cause, but you can try to mitigate the color using this. Clean it first real good so there is no oil or dirt. Soak a q-tip, keep rubbing the q-tip over the area until it turns darker. You may need to get a fresh q-tip and do multiple applications as the acid will become neutral as it changes color.

 

[6.5SH]

Looks like they put loc-tite under the cap. Can try acetone/nail polish remover but ideal one would be nitro containing model airplane fuel.

 

[WeiserBucks]

Happened to me several years ago with a USO in Seekins rings, no Loctite was used. Residue came off the rings super easy. Took a whole aerosol can of graffiti remover and a nylon brush to get the shit off the scope tube, nothing else would touch the residue. Came out spotless.

Never seen anything like it before or since.

 

[toader]

I would bet its residue from Lok-Tite.

 

[Stovetop535]

Thanks.

I'll try a few of those suggestions and see. It's not a huge deal, cause the new mount will cover most of it.

 

[Stovetop535]

Picked up some graffiti remover and it took it right off. I didn't have to leave it on long, that stuff is nasty.

Thanks for the suggestions.