This is Ymir, it fire 2X shotgun shells (madbull or compatible) and one 40mm shell.
It has spring loaded strickers, barrel lock, an adjustable stock and 3 picatinny rails.
You will need epoxy, m3 nuts and screws and small springs for the strickers.
It's a big project but it's really worth it !
Have fun with this one
Like my stuff ? Follow me !
Love it ? Tip me ;)
COMMERCIAL LICENSE AVAILABLE - CONTACT ME FOR MORE INFO