Last new Smith I purchased was a 640Pro. Factory adjustable night sights, no lock, slicked up trigger by PC, and 357 w or wo moon clips.

Great balance and dead on with heavier bullets. In 1970 I became a sworn Peace Officer and always wanted a J frame that shot to point of aim and you could use 38+p or greater loads. I retired from LE in 2006 and after trying numerous Js none ever completely filled the bill.

In 2011 I purchased the 640 Pro as another retirement present. This gun has it all and does it all. POI/POA the same. Night sights and great action without "the Lock"

One of my favorites to carry and to shoot. Even sent a letter to Smith telling them how much I like this 640. Never did that with any other Smith.