Do they make an all steel M&P 340?

[EvilWayz]

Friend of mine just got one of these and I am in love with the sights. But it's too light in my opinion. My left wrist is mostly titanium so I like my snubbies with a little more weight to them. My other option is a 640 Pro.

 

[Mark in GA]

The 640 Pro would be your closest option.

Mark in GA

 

[murphydog]

I think you just answered your own question . The all-steel 640 Pro has dovetailed front and rear sights, relatively easy to change. Please post photos after you pick yours up!