Is this what your wanting?
Had a buddy biought one for use in a Contender. The neck of the adapter split within a box or two shot through it.
That was over 25 years ago so maybe better steel is in use now.
http://www.auctionarms.com/search/displayitem.cfm?itemnum=9372277&affid=1001
Last edited by 700LH; 11/01/09. Reason: 25 yrs