Crimson Trace has a number of laser grips for the K Frame S&W, some for round butt, some for sq. butt, some fit both. Check it out on line.
I still think a 60's vintage .38 spec. M-10 S&W, 4" with Crimson Trace grips would be hard to beat. Those guns can be bought for good prices and represent a real value. It would be hard to find a modern gun that smooth. If the springs are too strong, then a Wolff spring kit would work. Brownell's has them.
DF
