Nerf Vulcan Stealth Voltage Mod

I saw a lot of voltage mods for the Nerf Vulcan, but they all needed alligator clips for an external battery pack. This is my take on it, a stealth in-gun mod that allows for modular attachment of battery packs. It can run with a single 9.6v pack (for slightly over stock voltage) or two packs for 19.2v.

I used x2 Tenergy 9.6v 2000mAh battery packs - http://www.amazon.com/gp/product/B001...

Also used x3 sets (3 male, 1 female) of Tamiya connectors - http://www.amazon.com/gp/product/B001...