Best to try it yourself. I was in a similar situation a while back. Often there are hidden collimation screws under the hand grips, or in my case, I was pulling the apart for fun looking for any interesting / useful bits and I found that one of the screws holding the prism in place was loose. Tightened it up again, BAM! Instant collimation!
It's worth a try! What have you got to lose?
M
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