I own a 4" 686-4 with a square butt.

Purchased on the reccomendation of fellow police officers who loved the 4" 686.

I found out after I bought the 4" 686 that many S&W fans like the dash 4 version. Many saying these were the last without mim parts?

I can say that I've shot lots of 686 revolvers, and all were great shooters.