The E-Points or simply EP is a real currency in the Philippines are usually non-GP (Gear Points) this are currenly available by a card, Load Central and others. It is use a real currency by IP E-Games
It seems the new guns are available in Premium Items that only can buy in EP, not only guns, but the also can be purchase either non-GP or GP+E-Points.
The non-GP can purchase such as guns (primary weapons and secondary weapons) , equipments (the MK2 is only with GP and E-Points), and items.
In July 2011 is offically available GP for guns.