Here's a thread regarding ICD's,

http://www.doublegunshop.com/forums/ubbthreads.php?ubb=showflat&Number=137957&page=1

From what I've been able to ascertain, the Beschi's were/are less than desireable.
I believe your question is answered in the first reply.

Here is a nice ICD on GunBroker(OK,it's mine, ($10 to Dave)).
http://www.gunbroker.com/Auction/ViewItem.aspx?Item=159365138