Need help with an ID

[trekgod3]

Ok, I know almost nothing about revolvers (I only own one). I am helping a friend sell his collection and I don't know what model this S&W is. It's an airweight and rated for 38 special +p. He is asking $600 for it and including 2 speed loaders and a shoulder holster rig that comes with s S&W knife. It also has a laser grip. Thanks for the help.

 

[MrBorland]

Looks like a Model 637 to me. Open the cylinder and the model # ought to be stamped on the crane.

http://www.smith-wesson.com/webapp/...d=10001&productId=14761&langId=-1&isFirearm=Y