Not seen in this photo, but installed, is the forced-air system for the de-linker in the foreground here. My last heat gun contributed its turbine housing and motor. Air will keep the ammo moving inside the storage cylinder (the de-linker body holds over 20,000 rounds), and then exit through a large meshed filter, hopefully carrying any stray dust or pet hair that might cause stoppages. Hidden underneath is an AK hicap that has been shortened and motorized using a JR ST47 servo. Ammo is pushed up through a long spring coil, this seen coming out of the lower front of the de-linker in the last photo below. Then the coil goes under the front of the assembly to the M14 hopup.
I still need to fab up the inner mount for the M14.
Battery packs are housed inside the two 2" tubes that flank the body. One of these can be also used for holding bags of back-up ammo. The longer one can hold two 8-cell RC truck packs or up to 24 similar-sized cells in a custom pack.