That depends. If its a game engine like unity. Create a material atlas and then drag amd drop the tiny 8x8 bit texture map on to it. And set the materials to nearest.
Viewing post in Flat Shaded Lowpoly Guns comments
do you know an easy way to do the texturing an a place like blender? Im trying to upload these assets into a roblox game and im currently trying to manually texture the weapons on blender before importing them to roblox (any tips on how to do it faster either in blender or straight onto roblox would go a long way)