Yesterday I picked up a used 640-1 from a local dealer, I have an irresistible urge to buy just about any snubbie I see, and took it to the range. To my surprise it, more than my other snubbie's, felt like a real fighting gun. It had plenty of weight to allow for quick follow up shots, the sights weren't bad, the grip was comfortable and the trigger superb.
I like it!!!