I don't have one, but I just had to comment. I saw this in their catalog also.
As a snubbie.
No offense meant to anyone, but my first thought on seeing it was,
"Holy Jesus H. F***in' bald-headed CHRIST!!!"
I cannot imagine that would be comfortable to shoot, nor easy to control, even with the porting. That saidTM, however, I'd love to be convinced I was in error. That thing looks like it would very effectively and satisfyingly stop any threat short of an Abrams tank.
I look forward to (just read, while typing this!

)a range report on the cannon pictured here as well as the snubbie version, if anyone has one.
Once again, my apologies if my above thought offended anyone.