We first heard about this with the 25 Days of Christmas offer from Airsoft GI and now here's Bob giving you an even more in depth understanding at what this series of custom airsoft guns are... "Want an awesome gun? Want to be part of an exclusive club? Well, now you can with the Airsoft GI Black Card Custom Gun Selection. When you buy one of these guns, you get a personalized black card, and 12 purchases with 20% off and free shipping for a year!