I have mental block when it comes to adapters of any kind. Even when they work, I generally avoid them. I have had no issues with the one I put on a Shockwave but every time I look at it I hate it.
I'm the same way when it comes to caliber kits... like 223 to 22 LR conversions.
Which adapter did you get? Mine has been flawless, and I don't notice it. It looks like it's part of the gun.
I generally don't like "adapters" or conversions, either. But when my wife got this for me, there was no "S" version.

