I've got one of the 'Ellwood Epp's' converted units in 9MM..
Yes, you get your old barrel back, but they took care of getting the gun
re-registered as a non-restricted.
The cost includes the new barrel and labour...
The new gun is AWESOME...I didn't do a back to back accuracy test before and after, but this thing is a tackdriver out to 75yd. with WWB 115Gr
It seems like a lot to pay, but would be a better deal now that the price on the Storms has come down quite a bit...
If you want a great 3 gun carbine, and a great 'take anywhere' plinker with a full 10 rounds/mag at your disposal, it's pretty hard to beat.
I encourage everbody to try mine during our range days, and it's a crowdpleaser...even the crappy trigger is getting better with time, use, cleaning and grease.