No specific location. Try searching around in the secret armory of general knoxx DLC as it will only appear in there.
Borderlands has seventeen million weapons, so it's hard to tell. There are, however, 17 general types of Eridian (Alien) weapons in the game: Eridian Cannon, Eridian Mega Cannon, Eridian Thunder Storm, Eridian Lightning, Eridian Mercurial, Wave, and Ball Blasters, Ereidan Flaregun, Fireball, Firebomb, Eridian Glob, Splat, Spatter Guns, & the Eridian Rifle -http://borderlands.wikia.com/wiki/Eridian_weapons
m-cannon
You cant make weapons in borderlands, you find them, (i finished game)
that's a hard question in borderlands 1 he is shone in the zombie dlc and mad moxie dlc but you don't see him and in borderlands 2 you find him in a bar
You can find it at the minecraft skindex
Weapon Wars - 2013 Mega Buster Arm Cannon vs. Metroid Arm Blaster - 1.1 was released on: USA: 30 June 2013
If you buy Pirate Seas, the soul gem is something with a cannon. I'm not sure where it is, but it is definitely in Pirate Seas. If you go by the cannon on land go right up the stairs and you will find the soul gem.
Cannon games offers Super Invaders, Tower Breaker, Max Damage 3 and Monsters Mega Packer. Cannon also offers Raft Wars 2, Bunny Cannon and Steampunk Tower as well as Mythic Fort Defense.
Weapon Wars - 2013 Mega Buster Arm Cannon vs- Metroid Arm Blaster 1-1 was released on: USA: 30 June 2013
You can find Cannon photocopier devices at any local computer retail store. You can also find Cannon photocopiers at online stores such as eBay or Amazon.
Borderlands traditions tend to be mixed. Please specify WHICH borderlands you are referring to.
You would usually get a code with it