Sorry guys... long day! Anyways, here's a direct reply about the diff. in the letters
The dragon series is the number AB-BC-BB-BC , AB/BC differs on color, so does BB/BC ; M/K are the upgrade versions of 5.1, but the fuction of version M/K/Dragon are basically the same, mainly difference is on looking.
That is from the supplier.
also, anyone wanting in on this, then best thing to do is send me an e-mail to
randy@doubleedgeairsoft.com and send me your info, shipping, name, phone, etc.... along with what you want to order, and put the subject as WE order.
Thanks Guys
Randy