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Yup It's been done numerous times. Your best bet would be to search for one of Curtton's DIY (Do it Yourself) threads here in the Red Rifle Section. He offers a very thorough explanation along with pictures of how to get the job done right.
I definitely should have read his DIY posts before I went at my cz858 with a bunch of tools. Lol still looks good though, just not the best if you do a close up inspection