i polished my internals w/the brillo pad method. everything looks great except for the front bolt area on my receiver. do i need to polish some more, maybe w/sandpaper? or did i dork up the receiver and need a new one? all maintenance/assembly on my marker is done per manuals/videos/threads i found here so i know that is not the issue. any ideas?

it looks fine to me... there' a little "smudge" of metal but one of my 98's had that... it's near impossible to polish too much w/ the brillo method

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Ya, unless you're *really* ocd, it'd be really hard to deform the receiver sides with a brillo...

Looking good. I think you should be fine.

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If you're really concerned, one thing I can tell you to do is put a hopper of balls through the marker. Listen to all the bells and whistles of the marker. After, strip down the marker and inspect everything. If there are any new scrapings or scratches on any of the parts there's a problem. If not? All good!

that was the first thing i did after seeing the area, when i took it apart i inspected the bolt and it looked like nothing was rubbing. i was just curious cause of all the pics of internals i saw on the forum here, none had an area like that. thanks