I suppose so. It was a much easier process than I thought it would be. The again, I don't think the LCP's have a very sturdy barrel coating as it tends to wear quickly (which is why I polished it in the first place).
Polished the barrel on my LCP. I keep some good oil on it and never had an issue with rust.
http://www.theoutdoorstrader.com/threads/533197-LCP-Barrel-Polishing-Completed?highlight=lcp+polish