Stasis rifle
From Halopedia, the Halo wiki
The stasis rifle is a deleted Forerunner weapon in Halo 4, present in the map files. It's a gun that, upon firing, would create a stasis field similar to a pulse grenade, but instead of causing damage, it slows whoever is inside of it. It can also scare Covenant out of turrets, as if it was a harmful projectile. [1]
Gallery
The untextured Stasis rifle lying on the ground.
The stasis rifle generating a stasis field.
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