Picatinny Battery Mount for iGO 6100mAh Battery Packs

Okay so I think this is my final design. I've printed four so far and keep finding little things to improve. The latest print is the version you see here. I recently purchased a ATN X-Sight II Night Vision Scope and quickly learned that I was going to need some sort of battery pack for it if I expect to hunt for any extended amount of time. Running the scope from internal Energizer Lithium AAs nets you about two hours worth of run time. I had a iGO battery pack laying around at the house so