http://www.gunbroker.com/Auction/ViewItem.aspx?Item=357116233
Don't see these often. It's the cone barrel but 4.5" and possibly Polygonal rifling. Since the Pro looks like my new 4.75" setup I thought this would be neat on the Match. EAA is weird that you can only purchase a Limited top (high dollar) or Long Slide setup for $285. The Long Slide has the Super Sight which is better than the LPA low-profile piece.
Looks to be in great shape, he says the slide / bull barrel and 2 magazines are "new"...comes with recoil rod and spring also.
All in all, it looks nice
Slab Sided Slide
I have their "Longslide" conversion Upper
I do like the Super Sights that comes on that Slide
(http://i1108.photobucket.com/albums/h414/denstinettm14/10mmWitnessLongslide.jpg)