It's a grey knight terminator arm with a mek wrench added on with a few bits.
DA NEW GRETCHIN MEGA ARMOR!
I give you the newest wargear in the Grot Revloushun's arsenal; Gretchin Mega Armour!
While not as durable as Ork Mega Armour these clunky suits provide the wearer with a powerful blasta and a personal teleporta.
These guys will be representing Tempestus Scions!
What do you think to them?