Before polishing my internals, I had to change my Orings at least once a year. I play every weekend, so they get a lot of wear and tear. Since polishing my Internals, around 2 years ago, I haven't had to change a single Oring inside of the marker.

Not really scientific, but they have lasted me at least twice as long, and still going.

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@ e36freak - i did it gets all of the aluminum dust out of the grains of the sanded metal you cant see them.if you dont then when you go to put lube in your tippy the lube will mix with the aluminum dust making it gunky (from my experiences anyways). Try using Mothers powermetal polish it works amazing makes your internals look like mirrors......ooooooo shiny lolol!

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I all ways woundered how now im going to try it

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Just wondering (might be a silly thing to ask)

After polishing should I first grease the marker and then put lube it or is lube only enough ?

Picked up a 98 pro yesterday and polished the internals this weekend. Brake parts cleaner worked very well with a scitch brite pad to cut down the overspray first, then I went to polishing her up.

One thing to remember is to clean the inside very well before you attempt to "polish" it.

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quickest & easiest way to polish internals is with a dremel & wire brush. 5mins. tops
this youtube vid by MTX02 will show you how
YouTube - Broadcast Yourself.

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NOV. MOTM 2011
AlphaBlack MP5SD

I took apart my new platinum ACT today after work today to install my new stock and a few other parts, and seen that the inside of the reciever has already been cleaned and somewhat polished. I bought it brand new 3 days ago, so it looks like tippmann has had enough feedback and are starting to clean the internals somewhat before final assembly.