18AA battery magazine

[2000xlt]

Will it fit into a stock 3D mag?

 

[Phaserburn]

No, it won't.

 

[Lynx_Arc]

You cannot even get 13 AA batteries in there, 12 is the max if they are not of larger diameter, or 9 if they are. You will need a 6D mag for larger diameter AAs and a 5 cell mag for smaller diameter ones..... basically you can get 3-4 AAs PER/D cell size.