The Fourpounder might look quite rusty at first, but it packs a serious punch. I had lots of fun imaginig the inner workings, so it's all functional. Scroll down for more versions

As your travels take you further on the island of Blackreef, you will discover new weapon tiers, that jam less frequently and offer more trinket slots.

I always take this one on my playthrough, combined with the Explosive Decapitation or Marked for Death perks it's four pounds of fun !