HG RG 1/144 Gatling Gun, Backpack, Arm Set. Plastic Model. A lot of images, assembled on various gunpla and other kits. Info too
hgac
HGAC Gundam HeavyArms Hellfire custom
Mixing Build HGAC Gundam HeavyArms Hellfire: images, full info and credits
HGAC 1/144 Gundam Aesculapius
P-Bandai HGAC 1/144 Gundam Aesculapius: full official images, full info and release date
HGAC Gundam Heavy Armored Arms Custom
Mixing Build HGAC Gundam Heavy Armored Arms: many images with work in progress too, full info
BOOM HOBBY’s HGAC 1/144 Gundam Heavy Arms
BOOM HOBBY’s upgrade parts for HGAC 1/144 Gundam HeavyArms: images
BOOM HOBBY’s HGAC 1/144 Gundam Sandrock
BOOM HOBBY’s upgrade parts for HGAC 1/144 Gundam Sandrock: images