Did these things ever exist? First they were "coming," then "backordered," and now "discontinued."

https://www.midwayusa.com/prod...-rail-mount-graphite

I realize they have the 320 grip frame with built-in laser now, but it's hard to justify shelling out $350 for that when the 320 has a perfectly good rail.

I guess SIG couldn't gets these past the concept phase or timely delivery from the factory in China.