Let me tell you, I been having the best customer service from Debbie at Galloway. I been working with them on the Rod size for the lastest S&W SD40VE .
AS commented above, the one they sent was too long and the button end stuck out of the slide.
The stock factory was 2in & 940/1000th.... the one they sent was 2in & 975/1000th.
They made one and sent it out same day. There is a difference with the older SD's .