Ah yes, Matador 64, fan favorite Shotgun from Original D1, put into D2 as a part of Bungie 30th Anniversary pack. In order to get it Guardians will have to complete Grasp of Avarice dungeon. And yes, of course we will be able to help you out with it.
ETA for the boost is 3-12 hours.
Available for all platforms and regions.
Matador 64 Legendary Ark Shotgun boost rewards: