The Flashlight attachment is a light attachment for weapons with more than one attachment slot. It can be crafted by using a Small Megalite and a Duct Tape. After it's attached to a weapon on a free attachment slot the light can be turned on by pressing 'L'. There's currently a bug with the Flashlight attachment. It's only that bright as a normal flashlight and not as a Small Megalite although it has been crafted with one.