I'd think that a product titled "KSC Socom Silencer for MK23" would best suit this application.
With accessories for it too!
http://www.wgcshop.com/pcart/shopper...m=KSC-ACC-SCSL
http://www.wgcshop.com/pcart/shopper.php?itm=SAS01
http://www.wgcshop.com/pcart/shopper...KSC-ACC-MK23TP
I'll ask WGC if that suppressor fits.