I installed a male DC bulkhead plug into the gun, wired it internally to the battery terminals, and bought a 9-24v selectable voltage plug pack from Jaycar. At the cost of portability, I now have a battery free Vulcan. With the 24v selection, I have tripled the voltage and assumably, the rate of fire,(up to 540rpm!)
Cost: $40 total for plug pack and adaptor, instead of $100 for 6 rechargable D's and recharger.
The Longshot is next to receive more work, and both guns will then undergo painting. As an experienced model painter and detailer, these should not only look sweet but perform to match!