I have purchased a S&W 629-1 w/ 6" barrel, which includes the original (and very worn box and cleaning kit). It appears to be in great shape, including no visible wear to the wood grips. (I haven't checked to see if the are original, but am assuming they are.) With that being said, it could use a little TLC (i.e. hand polishing) to get it to that "like new" condition. My question...is it possible to remove the thumb piece without full disassembly...and can a non-gunsmith put it back together? Removing grips and cylinder is a non-issue for me. I want to avoid being the guy that takes my revolver to a gunsmith, in pieces and in a shoe box. Thanks.