This is an all original 686 357 Magnum Revolver from S&W. Most of these revolvers from 1985 were sent back to S&W for the issue with the firing pin. The recall was put into place in 1987 (and it's probably still in place) but this particular Revolver was never sent to get the problem fixed.
The gun is all original, had the M stamp on the cylinder casing, and this is most likely a gun geared more towards collectors. However, if you just want a cool gun and don't particularly care about the history, you could most likely just send it into S&W and get the recall work done. I didn't want to do that because I think some guns should just be kept original and quirky.
No Trades
More Details about The M Stamped Revolver Recall; Although its service life was cut short, the L-Frame was in use long enough to discover a latent problem. Within a few years of its introduction, it became evident there was an incompatibility between the gun and certain types of ammunition which could render the gun inoperable.
The specific problem is that the metal cup of the primer used in some brands and loads would flow into the hole of the firing pin bushing when the cartridge was fired, thus binding the cylinder on the gun.
In practice, the firing pin would strike the primer and ignite the cartridge, and the internal pressure in the case would deform the primer cup and cause it to blow out in a circular ring surrounding the nose of the firing pin (or, in Smith & Wesson parlance, the “hammer nose”). This ring of material would flow around the sides of the hammer nose and squeeze into the space between the hammer nose and the interior walls of the firing pin bushing, where the hammer nose poked through the frame. This created a mechanical block which would prevent the cylinder from rotating when the trigger was pulled, and prevent the cylinder from opening when the thumb piece was pushed.