Mbox incomplete
Infobox incomplete
The infobox template in this article is missing some required data. You can help Nukapedia by filling it in.
Gametitle-FO4 FH
Gametitle-FO4 FH

Defender's Harpoon Gun is a unique weapon featured in the Fallout 4 add-on Far Harbor.


Defender's Harpoon Gun is a unique harpoon gun that bears the Penetrating legendary affix, meaning it ignores 30% of the target's damage and energy resistance., but is otherwise identical to its regular counterpart.


It can be obtained from the Mariner as a quest reward for completing Hull Breach 3.