Calgary police say its guns and gang unit investigated the shootings and the source of the guns.
Police used a warrant Tuesday to search a residence, and they seized two handguns, two rifles, a shotgun, and a variety of illicit drugs.
Eric Michael Hebert, who is 33, is charged with 11 counts of trafficking firearms.
David Robert Aeichele, also 33, is charged with two counts of possession of a controlled substance, two counts of careless storage of a firearm, and seven counts of possession of a weapon contrary to a prohibition order.
Police say more charges are likely.