Given away during the 2004 Christmas event.  Everyone who purchased a raffle ticket for it, received one.

Softnyx: Sold for a limited time during the Gunbound Birthday Event.  From August 16th - August 30th, 2007 you could purchase or gift these items from the Gunbound event page for 4,000 cash each.

ijji: Sold for a limited time during the Gunbound Birthday Event.  From November 12th - December 3rd, 2008 users could Purchase this item(s) from the Gunbound website for 200,000 Gold.

Softnyx:  Available for a limited time from December 9th, 2008 - January 6th, 2009, during the 2008 Gunbound Christmas Event. (***Also known as the: "Hey guys lets sell almost every single rare avatar for cash event!!".)  These items could be purchased for 2,000 cash each in the Gunbound Avatar Shop.