Hail,
As title says - the price is +400 for all 6 together (PEDs only).
http://www.entropiawiki.com/Info.aspx?chart=Weapon&name=S.I._HK110
http://www.entropiawiki.com/Info.aspx?chart=Weapon&name=S.I._Psy-Blade
http://www.entropiawiki.com/Info.aspx?chart=Weapon&name=S.I._Scorpion...