Sounds like you're describing the USACAPOC patch that all Reserve Civil Affairs and PsyOp soldiers wear. Not sure if the second link is a lapel pin or metal SSI.
https://rlv.zcache.com/usacapoc_a_sp..._8byvr_324.jpg
http://www.dhresource.com/260x260s/f...rmy-usarmy.jpg