I went to look at a S&W M66 3" this morning. When I got there, the fella said he'd sold it. I asked about any other 3" pre lock S&W's, and he said he had a 686. He brought out a blue cardboard box, and pulled a dull gray 3" 686 out. I thought I'd seen pictures before of such a revolver. I saw the pachmayr grips, and thin pinned black blade front sight...... and hoped. I swung out the cylinder and read the "CS-1" above the model number. Sold to me. I've read that S&W put alot of effort into these 686's, in order to meet the specifications of the US customs service. I'll post a range report when I get time to shoot it. All in all, I think it was a pretty good consolation prize. Regards 18DAI.