BRN-180 GBB Airsoft Shooting test

Every parts on BRN-180 upper project are newely designed.
So it needed to be verified if it works or not.
This is my FOURTH version of chamber and bb feeding ramp.
The result waa successful. No issue during 7 magazine cycle.

[@DEAJman]

very cool，i want made it on my MWS gbb

[@penguinjolt]

Very cool indeed. :)