Another light weight and weatherproof revolver is the S&W Bodyguard or Rugar LCR (Tauras even makes one). The Rugar is available in 22LR, 22 Mag, 32 something , 38 or 357. There may even be a 9mm in there (or not).

My EDC is a 49 no dash (all steel) and my bicycling gun is a LCR 38 (both pocket carry) It could be thought of as a Polymer 439. Same ammo, same speed loaders, and same DeSantis Nemesis.

Ivan