S&W 624 simple question

[SteveC99]

Went to wipe down , clean, and generally maintain this revolver and the checkered cylinder release tab came off when I opened the cylinder.  It snaps back on OK, but it is too loose to trust to stay put now.  Is this something fixed by a spot of locktite, or should it stop by a 'smith?  Thanks.

Edit: I'd delete this if I could.  Now that I actually look a the thing, there is a thumbpiece nut that has come loose and is gone.  Appears I need another one of those.

[Graybeard]

If you're talking about the release catch to open it there is a screw that holds it in place. Yeah they do loosen under recoil and yeah a dab of blue loctite helps.

[Mohawk]

  I've had to use loctite on my ejector rod in my Model 28, because it still had the right hand thread and the cylinder rod would unscrew itselt during use, a problem S&W fixed two years after my gun was made, changing them to left hand threads. Anyway, haven't had a problem since.