Fully built /Electronics Proton packs GB1 and GB2

Fully built proton packs
Metal parts
Electronic and sound 
This is for two packs GB1 and GB2 
We are doing a short run of these so we can make videos for people building the kit versions 
We can make changes so special upgrades 
We will do these with metal shock mount/heat sync and metal gun track and a metal N-filter