I Pocket carry a 340PD and 442
I love the S&W extended grip (It comes on the model 640)
I've ordered many aftermarket grips and never found one better than this.
I always switch out all of my J Frames to this gip and I don't think
many people know that they can use this grip
It's just about an inch longer and perfect for my pinky finger
for added stability
Best regards, Rick