Rifle Scopes Something came off the bottom of my Mark 4

[TheGerman]

I'm not sure if some solvent got onto it and eventually ate away at it, but on the bottom of one of my Leupold Mark 4's there was a 'heavier duty' round sticker next to where the serial number is etched/engraved and it fell off.

While this didn't seem like a big deal at first, when I looked at the underside of the scope to see where it came from I noticed what seems to be some sort of rubber material that is dark orange/red in color.

Is this the port where the gas is filled into the scope, or what is this? I looked and the other Leupold scopes I have have this as well, but I wasn't about to screw around with any of them.

Anyone ever have this happen? I've sat on hold with Leupold all morning so I am still waiting to see if they can send me a replacement; its just a damn sticker after all. But I was curious as to what this is now.

Thanks

 

[BCP]

Re: Something came off the bottom of my Mark 4

I think that rubbery looking stuff is the adhesive that held it on. I had one of the circle emblems fall of one of mine and that's sort of what I saw under it.

 

[TheGerman]

Re: Something came off the bottom of my Mark 4

Finally got through.

It's the gas port.

They're mailing me a few backup decals to put back over it. I'm glad I didn't mess with it lol