S&w 651

[bulljack]

I'm new here. Does anyone know what S&W did to the 651 to make it a
651-1 and when?

Thanks

 

[Harbinger]

Hello,
The 651 was introduced in 1983.
In 1988, the 651-1 had a new yoke retention system, and that year also ended the first production run. The next production run began in 1991.