Vanguard Solutions Vanguard Speedloader Extender Adaptor PK227 so if you have extra

so if you have extra mags from an older gen VFC GBB M4 that you own

Replacenment end cap for SSG series rifle

25mm nozzle length Fully compatible with most aftermarket soft and hard rubber buckings without losing FPS or dropping BB during use Wisely equipped with an interchangeable Inlet Adaptor OD11mm to ensure the hopup unit is inserted exactly in the center of the 11mm inner bore AEG Gearbox/HPA Engine nozzle outlet without wobbling

and electronic control

308 instead of 5

Vanguard Solutions Vanguard Speedloader Extender Adaptor PK227 so if you have extraUsed for magazines that have a special design and the feed tube cant reach the inlet.