I have an etek body I might like to have done. The outside is no issue. The trick is the inside area where the bolt moves and also, in front of that, the breech itself. This is visible from the outside, so would need to be done (and is pink now...would want to change the color).
Would it be a problem to use dry film lubricant inside a breech through which paintballs pass? If there are o-rings on a bolt and the bolt moves over the dry film lubricant, would it chew them up?