Shrapnel Launcher
From Destiny 1 Wiki
The Shrapnel Launcher is a simple, effective, robust weapons system that the Fallen can build without risking vital resources.
The weapon fires loose-forged canisters of explosives and shrapnel down electromagnetic rails embedded in the barrel. Captains favour this weapon for its intimidating presence, though it has also been seen in the hands of Dregs and Vandals. The regular version deals Solar damage; Fallen that have been Taken use a version that deals Arc damage.
The Shrapnel Launcher has been made into an Exotic shotgun known as the Lord of Wolves.