Yes, the .22 Rem Special IS the .22 WRF. I have a 12 CS.

by Hobie , Shenandoah Valley of Virginia, Sunday, January 22, 2012, 11:58 (4637 days ago) @ Bud
edited by Hobie, Sunday, January 22, 2012, 16:56

However, I don't know if one could simply open up the bolt. If I can get my hands on a 12 and look, I'd be glad to compare.
http://shootingwithhobie.blogspot.com/2009/10/remington-model-12cs.html

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Sincerely,

Hobie